AbstractEcological economics is an emerging field that offers significant room for creativity and innovation at the conceptual level on how to operationalize sustainability. It integrates economics with ecology and many elements from both the natural and social sciences to provide an integrated perspective on environment-economy interactions. A major policy dilemma that ecological economics addresses is how policy-makers can influence markets, so that they receive the 'right' signals from the na...
Autori: Kes McCormick
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25106

River runoff forecasting is one of the most complex areas of research in hydrology because of the uncertainty of hydrological and meteorological parameters and scarcity of adequate records. Artificial neural networks (ANN) can be an efficient way of modelling stream flow processes as it is capable of controlling and modelling nonlinear and complex systems and does not require describing the complex nature of the hydrological processes. In this study, daily river flow is forecasted using two ANN ...
Autori: Cintia Bertacchi Uvo, Dimitri Namgaladze, George Gabitsinashvili
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25110

AbstractIn 2004, the types of shoreline were estimated on Lake Balaton, such as rip-rap covered, reedy, concrete or grit. Exact area of a specific face of a rock in the rip-rap covered parts can be determined by digital image analysis. Wetted rocky area of the shore was estimated as a function of water level in 10 cm steps of level changes. Taking into account the reproduction characteristics of the studied fish species (Cyprinidae) the potential substrates for spawning are dominantly the shallo...
Autori: Gabor Borbely, Gabor Paulovits, Laszlo G. Toth, Nora Kovats
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25204

Contain all the articles from this issue:ICEEM/01 -- Environmental Management Section Corporate environmental competence: A concept for characterising and assessing the environmental practice in companies and product chainsMichael S?¸gaard J?¸rgensen, Marianne Forman Life cycle assessment of some alternatives for the supply of thermal energy in the municipality of Iasi (Romania).Nicolae Peiu Management options for the industrial and municipal wastes in the city of Iasi Carmen Teod...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25169

? Kinetics considerations concerning the oxidative degradation by photo-fenton process of some antibiotics ? Catalytic wet hydrogen peroxide oxidation of 4-chlorophenol over iron-exchanged clays ? Researches on the negative effects assessment (slugging, clogging, ash deposits) developed at the biomass-coal co-firing ? Contribution to the study of the environmental heritage of a former chemical plant ? Impact of chemicals on derivatives with important therapeutic activity in C...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25376

AbstractSolid waste management in Malaysia has become an increasingly important task of local government authorities over the recent years as a result of urban population growth, industrialization and an increase in quantity and variation in the types of waste generated. For this reason the government of Malaysia through the Ministry of Housing and Local Government has taken various measures to promote recycling amongst its population. However, a recycling program is only successful if household...
Autori: Abdelnaser Omran, Adam D. Read
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25228

AbstractMesoporous Ti-SBA-15 materials have been synthesized up to a Si/Ti ratio of 20 using a two-step pH adjusting method. Low angle X-ray diffraction and diffuse reflectance UV-Vis spectroscopy revealed that the optimal pH value to synthesize highly ordered mesoporous solids having Ti atoms primarily in tetrahedral coordination environments is around 7.5. The nitrogen physisorption and TEM indicated also ordered mesostructures having relatively large surface areas and uniform mesopore size di...
Autori: Adrian Ungureanu, Alexandru Chirieac, Brindusa Dragoi, Cezar Catrinescu, Emil Dumitriu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25263

AbstractConsidering that three-phase dispersions are common in chemical engineering and biotechnology, and with increasing airlift reactor applications to chemical and biotechnological processes, a experimental study was undertaken in order to investigate the liquid phase hydrodynamics and dispersion in an external-loop airlift reactor on laboratory scale. Experiments were conducted in order to find a relationship between relevant hydrodynamic and mixing parameters of a solidsuspended exter...
Autori: Florina Ungureanu, Maria Gavrilescu, Radu Z. Tudose
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25268

AbstractTheoretical and experimental studies of gas drying processes by adsorption in fixed bed of grains are presented in this paper. Based on an extensive literature study, some of the most representative mathematical models describing gas adsorption in fixed bed and consequently gas drying processes by adsorption in fixed bed are also presented. Using a mathematical model from those mentioned describing adsorption under isotherm regime, the temperature and gas flow velocity effects over the d...
Autori: Marius Sebastian Secula, Stelian Petrescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25272

AbstractThe cost sensitivity analysis of a chemical process was carried out through a sequence of three stages, using three different software applications. In the first stage an alkylation process was optimized with GAMSÂŽ software, the objective function being the profit. This optimization was repeated for the values of five different costs in the frame of a factorial experiment. In the next stage, the objective function-costs dependence was quantified with an artificial neural network, obtain...
Autori: Alexandru Woinaroschy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25273

AbstractEnvironmental pollution has posed and continues to cause specific to and complicated problems. The unsustainable production and consumption patterns result in waste that can harm health and the environment. Because of rapid population growth and urbanization, industrialization process and rural to urban migration, solid waste management is becoming more and more critical now, being a problem in rapidly growing urban centers in developing countries. All these threaten the health and well-...
Autori: Abdelnaser Omran, Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25275

AbstractThe present work describes an investigation of process of ion-exchange separation of tartaric acid in model systems. These investigations will be used for the separation of tartaric acid from secondary wine products. Their valorisation allows obtaining valuable compounds, as well as decreasing the huge quantities of wastes accumulated at wine making factories.As ionic exchangers, there have been used weakly basic anion exchanger Amberlite IRA-67 (tertiary functional amine groups) and str...
Autori: Aliona Mereuţa, Gheorghe Duca, Herbert G. Boechzelt, Natalia Marchitan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25286

AbstractBiosorption an alternative process is the uptake of heavy metals from aqueous solutions by biological materials. The biosorption of nickel ions from aqueous solution was investigated by Nordmann fir (Abies nordmanniana (Stev.) Spach. subsp. nordmanniana) in a batch adsorption system as a function of pH, initial metal concentration, biomass dosage, contact time. The data showed that the maximum pH for efficient sorption of Ni(II) was 6.5. At the optimal conditions, Ni(II) ion biosorption ...
Autori: Handan Ucun, Ozkan Aksakal, Yusuf Kaya
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25295

AbstractA greenhouse experiment was conducted to determine the phytotoxic effect of heavy metals such as Cd, Cu, Ni, Pb and Zn on the growth of Sunflower (Helianthus annuus): on the seed germination, root/shoot growth and uptake of metals in soil-vermicompost media. The selected metals were dosed at various concentrations ranging from 0, 5, 10, 20, 40 and 50 ppm separately in soil - vermicompost media (3:1) in pot experiment. The seed germination, root and shoot growth were found significantly a...
Autori: Chhotu D. Jadia, Madhusudan H. Fulekar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25306

AbstractThis paper discusses the results of study concerning the interaction between the birch veneer and some compounds with biocide potential action are presented. With this end in view the samples of veneer were immersed in solutions with a concentration of 5% of the following products: unmodified straw lignin or modified through hydroxymethylation, furan resin and tannins dissolved in 0.1 N ammonia solution. To make a comparison, the same combined treatments were applied, using ammonia solut...
Autori: Adina-Mirela Capraru, Elena Ungureanu, Valentin I. Popa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25309

AbstractWood-based epoxy resin was synthesized from resorcinol-liquefied wood. First, wood components were depolymerized and liquefied by reaction with resorcinol. The resorcinol-liquefied wood with plenty of hydroxyl groups could be considered as a precursor for synthesizing wood-based epoxy resin. Namely, the phenolic-OH groups of the liquefied wood reacted with epichlorohydrine under alkali condition. By the glycidyl etherification, epoxy functionality was introduced to the liquefied wood. Th...
Autori: Akira Fujita, Hajime Kishi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25310

AbstractThe paper discusses some aspects concerning environmental issues considered from an economic perspective, since economic globalization as well as ecological globalization follows new ways of conditioning each other. In the past the most important thing was the impact of the environmental protection pressure - soil deterioration, water system, the atmosphere and the forests - uponeconomical perspectives. In the recent past years the society had to face the quick growth of the economical i...
Autori: Ionel Bostan, Petru Condrea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25316

AbstractTwo non-functionalized hypercrosslinked polymeric resins type Macronet (MN 202 and MN 250) were employed to remove nhexane vapors from gas phase. A comparison of the equilibrium behavior of these hypercrosslinked resins and a bituminous granular activated carbon was made. The initial n-hexane concentration in the air stream ranged from 2100 to 4500 ppm and the adsorption temperatures were 30oC, 40oC and 50oC. The results showed that the MN 250 presents the higher adsorption capacities of...
Autori: Adela Marilena Buburuzan Haleta, Cezar Catrinescu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25341

Pollution with sources from towns and industrial centres affect considerable the ecosystem waters. An accumulation of nutrients favourable to the growth of certain tiny marine organisms called phytoplankton stimulates their rapid reproduction in the water.These plankton blooms appear as patches on the surface of the water. The consequence of this process is the diminishing of the amount of oxygen from water (in the process of decompose the algae), the decease of aquatic animal and the multiply o...
Autori: Laura Stefanescu, Laura Ungureanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25351

AbstractSolid waste management problems proved to be complex in origin and in solution. The rapid economic development and population growth experienced by the State of Penang, Malaysia have resulted in a tremendous increase in the quantities and types of solid wastes generated. Domestic solid waste is the most visible consequence of this economic development. However, considerable amounts of this waste could be recycled and reutilized if separated. This paper reviews the current status of solid...
Autori: Abdelnaser Omran, Abdelsalam O. El-Amrouni, Abdul Hamid Pakir, , Latifa K. Suliman, Mahyuddin Ramli
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25353

Include urmatoarele articole:� CsHSO4/mesoporous silica composites - new electrolytes for solid acid fuel cells� Trend in exhaust emissions from in-use gasoline vehicles� Analysis of distribution of oxygen transfer rate in stirred bioreactors for bacterial broths� Electrochemical characteristics of Ti6Al7Nb alloy in Ringer's solution� Pulsed high voltage discharge technology as a new method for killing Hepatitis C virus (HCV) cells� Hydrodynamic modelling of pollution with LNAPL gene...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25367

Include urmatoarele articole:� Environmental Engineering and Management Journal, Vol. 8 Nr. 2� Bioengineering aspects of tissues culture bioreactors for medicine and environmental applications� Removal of bis (1-chloro-2-propyl) ether from wastewater using sonodegradation and biodegradation� A novel plasma reactor for toluene decomposition in contaminated air flow� Study of the copper (II) removal from aqueous solutions by chelating resin Purolite S930 � Analysis of some metal levels...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25371

� Physiological changes in seedling germination and growth plant under chemical stress conditions� Studies on sorption and transport processes of cadmium in soils� Assessment of the anthropogenic impact on water systems by fluorescence spectroscopy� Research on the effects of soil improvement by fertilization on the quality of winter wheat� Halotherapy: From ethnoscience to scientific explanations� Study regarding the sorption of erythrosine from aqueous solution onto soil� Hydroxy...
Autori:
ISSN: 1582 - 9596
http://www.ecozone.ro/reviste.php?RID=25375

AbstractThe adsorption characteristics of n-hexane vapors from gaseous stream onto two types of hypercrosslinked polymeric resins (MN 202 and MN 250), and a bituminous granular activated carbon (AC 20) was investigated. The n-hexane influent concentration ranged from 2100 to 4500 ppm and the adsorption processes were performed at 30, 40 and 50 ?C. Thermodynamic potentials ?H, ?S, and ?G and isosteric heats of adsorption were calculated from experiment performed at different temperatures (30-50?C...
Autori: Adela Marilena Buburuzan, Cezar Catrinescu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25393

Abstract This paper presents the preliminary results of photocatalytic oxidation of humic acid from water using two types of catalysts, i.e., TiO2 and Ag-doped TiO2 modified zeolite (TMZ and Ag-TMZ). TMZ and Ag-TMZ, with zeolite granulation of 315-500 ?Źm was synthesized by sol-gel method, and the morphology and composition of the unmodified/modified zeolite were characterized by BET (Brunauer–Emmet–Teller) method, X-ray Diffraction (XRD), scanning electron microscopy (SEM) and energy dis...
Autori: Cornelia Ratiu, Carmen Lazau, Paula Sfirloaga, Corina Orha, Daniela Sonea, Stefan Novaconi, Florica Manea, Georgeta Burtica, Ioan Grozescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25397

Abstract Up to the present days, the bioprocesses were designed and operated with the aim at achieving some economic, environmental, and social criteria. Sustainability based optimization has to be the next step towards the improvement of the economical, environmental and social parameters of bioprocesses. In this work, sustainability will be treated as an optimization task where the objective function(s) is/are either a performance index or a set of performance indices, subject to economic, ...
Autori: Alexandru Woinaroschy, Dana Irina Ofiteru, Vasile Lavric
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25418

Abstract Analytical equations for the variation of soil moisture content and for the local storage coefficient for a layered soil with a relatively shallow water table were developed in this study, based on a linear distribution law of the moisture retention on soil's profile, and the van Genuchten-Mualem parametrical model for the moisture-suction curve. By considering this mathematical model, an original computer code was written in MATLAB to determine and then to graphically represent the...
Autori: Dan Prepelita, Stefan Popescu, Esmeralda Chiorescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25429

Abstract The photocatalytic degradation of sulfamethazine, a sulfonamide drug, has been investigated experimentally, in aqueous heterogeneous solutions containing n-type oxide semiconductors as photocatalysts, and by simulation, using neural network modeling. Through direct neural network modeling, the evolution of the photocatalytic oxidation process is evaluated as function of illumination time and type of catalyst. Inverse neural network modeling is a particular optimization that gives inf...
Autori: Ciprian George Piuleac, Ioannis Poulios, Silvia Curteanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25430

Abstract The synergistic combination of polymers and inorganic compounds via sol-gel process has attracted great attention, by manipulating structure at molecular level, for developing new materials with desired properties. These new hybrid materials could have a controllable combination of the benefits of polymers (flexibility, toughness, ease of processing) and those of ceramics or glasses (hardness, durability, thermal stability). The microstructures and the properties of hybrid materials...
Autori: Lucia Dumitrescu, Ileana Manciulea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25446

Abstract Certain conventional and alternative carbon-based electrodes, i.e., glassy carbon electrode (GCE) and, commercial boron-doped diamond electrode (BDDE) were investigated and compared for the electrochemical determination and degradation of 2,4-dinitrophenol (2,4-DNP). The electrochemical behavior of electrodes in the presence of target pollutants was investigated using cyclic voltammetry (CV), chronoamperometry (CA), and multiple-pulsed amperometry (MPA). The duality of the electrode ...
Autori: Adriana Bebeselea, Cristina Proca, Florica Manea, Ciprian Radovan, Georgeta Burtica, Joop Schoonman
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25469

Abstract Corrosion control, using inhibitors like, polymerisable porphyrins and multifunctional nanocomposites, is extremely useful in many environments. Phosphogypsum is a waste product resulted from the process of obtaining the phosphoric acid and it can be also used as corrosion inhibitor; in a mixture with other coating materials. Two types of modified porphyrin: Na4TFP Ac - dissolved in KOH and H2SO4 and H2TPP - dissolved in benzonitrile, were tested. The structure characterization of pho...
Autori: Ionel Balcu, Adina-Elena Segneanu, Marius Constantin Mirica, Mirela Ioana Iorga, Corina Amalia Macarie, Iuliana Popa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25477

Abstract Knowledge of the binding mechanisms of heavy metals to cement minerals is essential for the prediction of the long-term leachability of cement-based solidified waste containing heavy metals. In this paper, the sorption of chromate ions onto calciumsilicate- hydrate (C-S-H) in equilibrated aqueous suspensions was investigated as a function of liquid-to-solid ratio. The hypothesis of super-equivalent adsorption was assumed to be involved in chromate ions immobilization. This hypothesis...
Autori: Constantin Bobirica, Ionel Constantinescu, Liliana Bobirica,
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25478

Abstract The motivation of this paper derives from the lack of integrated research and structures for managerial training and consultancy regarding the environment responsibility for eco-business. Also, the research underline the need of training and consultancy for eco-business in industrial small and medium size enterprises (SME) from the West part of Romania. The main aspects that were investigated were: the most needed items regarding the training programs, details about the consulting it...
Autori: Anca Draghici, Monica Izvercianu, Mihaela Vartolomei, Vasile Duran
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25487

Abstract Bioremediation of heavy metal contaminated soil is one of the major concerns of our days. Phytoextraction has been lately utilized as an alternative of in situ remediation technology for polluted soils but is generally perceived to be too slow. Even so, phytoextraction is an efficient long lasting, accessible and environmentally friendly technique. The aim of this paper was to evaluate the phytoextraction potential of bean (Phaseolus vulgaris) in stress conditions induced by heavy me...
Autori: Alina Stingu, Irina Volf, Valentin I. Popa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25508

Abstract Waste management hierarchy has as priorities waste recycling and energy recovery. Unfortunately, Romania is in the situation so as the waste landfilling is still considered as a suitable solution for waste management. European Union imposed a number of regulations and programs in the field of waste treatment and management that Romania must comply. The paper describes some aspects regarding characterization of the leachate originating from the Tomesti landfill (situated in Iasi County...
Autori: Ana-Maria Schiopu, Brindusa Mihaela Robu, Ion Apostol, Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25523

Abstract The use of appropriate leaching tests and leaching models can help to predict the hazardous components release from cementbased solidified waste during either utilization or disposal. Numerous parameters influence the leaching rates such as grain size/specimen size,ccc liquid-to-solid ratio, pH value of the leachate, leaching time etc. This study evaluates the effect of initial liquid-to-solid ratio of cement paste on the release of copper from cement-based solidified waste. Dynamic ...
Autori: Constantin Bobirica, Liliana Bobirica, , Ionel Constantinescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25527

Abstract Life Cycle Cost Analysis (LCC) and Social Life Cycle Analysis (SLCA) are available methodologies for the economic and social assessment of a product or process along its life cycle. Different approaches regarding LCC and SLCA have recently emerged and several hypotheses are currently on testing and discussing. This paper shows existing LCC and a SLCA approaches as well as the methodology applied in the particular case of a paper recycling process. This study gathers part of the Europ...
Autori: Beatriz Ferreira Pozo, Antonio Dobon Lopez, Carlos Lopez Lopez, Maria Calero Pastor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25529

Abstract Worldwide, tourism is the fastest growing major industry, but not all consequences are positive. This has lead to a growing attention for â€?sustainable tourism’. Compared to international guidelines, the current governance for sustainable tourism in the Netherlands proves to be very weak. Is this just because of stakeholders’ interests and their motivation to protect and conserve, on the one hand, or just encourage growth, on the other? We find some support for this, but also fi...
Autori: Hans Bressers, Valentina Dinica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25530

Abstract The presence of heavy metals in the environment is a major concern due to their non-biodegradability, bioaccumulation tendency, persistence in nature and toxicity to many life forms. Different treatment techniques for wastewater laden with copper have been developed in recent years to decrease the amount of wastewater produced and to improve the quality of the treated effluent. All techniques have their advantages and limitations in application. One of the most used techniques to rem...
Autori: Petru Bulai, Catalin Balan, Camelia Scripcariu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25531

Abstract Peat moss has been widely used as low-cost adsorbent to remove a variety of pollutants, including organic compounds and metal ions from aqueous effluents. Various functional groups allow such compounds to bind on active sites of peat moss. The adsorbent used in this study was Romanian peat moss sampled from Poiana Stampei (Romania). The adsorption of Co(II) ions from aqueous solutions on Romanian peat moss was studied in batch experiments, in order to establish the influence of initi...
Autori: Corneliu Caramalau, Laura Bulgariu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25533

Abstract The constructed wetlands are considered as a low-cost alternative system for nitrogen removal. Shale was selected as a media in constructed wetlands, on the basis of adsorption capacity and suitability for plant growth. The specific objective of this study was to evaluate nitrogen adsorption capacity for using as a media in constructed wetlands. Shale was sieved into 5 particle sizes Shale A-E. The physical and chemical characteristics of shale showed that it is suitable to be use as...
Autori: Amara Daothaisong, Jareeya Yimrattanabovorn
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25535

Abstract The aim of the study is to outline new opportunities of improving buildings ambient comfort and thus to determine energy consumption cut down. The second half of the XX century witnessed the development of society disregarding the extent to which environment was affected by the industrial production; pollution was triggered by the widespread industry which made use of technologies whose main target was the increase of production output at any cost, an aggressive industry with respect...
Autori: Vladimir Corobceanu, Răzvan Giuşcă, Raluca Giusca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25549

Abstract Plasma is often called the fourth state of matter. It is distinct from other lower-energy states of matter, most commonly solid, liquid, and gas, although it is closely related to the gas phase in that it also has no definite form or volume. Plasma technique may use any gas or gas mixture, within equipment limitations. Each gas or mixture of gases produces distinctive plasma, making possible a very diverse range of chemical environments. Besides the recombination mechanisms developed...
Autori: Marian I. Totolin, Ghiocel E. Ioanid, Iordana Neamtu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25550

Abstract The study contains a theoretical and methodological examination of the relationship between the environmental and economic efficiency of firms. It reframes the crucial question, not whether, but when environmental efficiency improvements are profitable for firms? The paper develops the novel concept of eco - profit and try to identifies three gaps in the previous knowledge: (1) the relationship may not be constant across environmental efficiency levels, which means that it needs to b...
Autori: Luminita Horhota
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25557

Abstract The efficient understanding and application of mathematical models in the study of environmental phenomena keep up with the latest results in the mathematical domain which could provide solutions for controlling, analyzing, predicting and study of risk phenomena. This paper presents a browsing through some mathematical categories of interpreting statistical data, examples and their analysis in connection with the degree of polluting the water down the Danube River with the help of qu...
Autori: Valerian Antohe, Constantin Stanciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25562

Abstract In this study the adsorption of cobalt(II) from aqueous solutions on peat (from Poiana Stampei, Romania) activated by simple chemical treatments, was investigated from kinetic point of view. The chemical treatments suppose the mixing of peat with aqueous solutions of common chemical reagents (H2SO4, NaCl and NaOH), without the addition of supplementary additives. An increase of adsorption capacity of peat was obtained in case of treatments with NaCl and NaOH respectively, and this is...
Autori: Corneliu Caramalau, Laura Bulgariu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25571

Abstract Organic matter is ubiquitous in every type of aquatic system and due to the influence that it has on their ecological health, can be used as a useful water quality indicator. Fluorescence spectroscopy has been efficiently used in the past decades to determine and characterize organic matter, and its link to function and chemical water quality. In this paper, fluorescence fingerprints are presented in order to evidence the anthropogenic influence on different aquatic systems. Using f...
Autori: Elfrida M. Carstea, Luminita Ghervase, Gabriela Pavelescu, Dan Savastru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25576

Abstract When plants are exposed to heavy metals influence, the processes of growth inhibition, ion leakage of all membrane, distribution of pigment and even more death of plants are produced. The physiological and biochemical changes in germinating seedling and cultivation in plastic pots experiments of different plant species (maize, bean, oat, and spinach) were investigated under the influence of copper ions as stress agent. Differences between tolerances against copper excess in the case ...
Autori: Alina Stingu, Irina Volf, Valentin I. Popa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25578

Abstract As a result of the global climatic changes generated by the alteration of the environment through polution, the ecosystems' natural ressources are incontrollably distributed, generating unforseeable effects at the level of the subsequent evolution of the natural balance factors. One of the greatest challenges of the science concerned with environment protection, is that of real time monitoring of the biochemical constitution. The real time monitoring of a great number of biochemical ...
Autori: Andrada Pretorian, Bojin Dionezie, Gabriel Epure, Ion Savu, Lucia Mutihac, Mihaela Muresan, Nicoleta Petrea, Petrisor Zamora Iordache, Razvan Petre, Rodica Lungu, Vasile Somoghi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25583

Abstract In this work, the behavior of n-hexane vapors in the adsorption-desorption cycles of non-functionalized polymeric adsorbents (MN 202 and MN 250) and granular activated carbon (AC 20) was studied. The adsorption experiments were performed in a fixed bed column, under dynamic conditions, at 30?C and atmospheric pressure. The inlet concentration of n-hexane in the air streams was 0.115 mg/cm3 (32500 ppm) and the space velocity was 2.75 s-1. Also, desorption experiments were performed in...
Autori: Adela Marilena Buburuzan, Cezar Catrinescu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25584

Abstract The removal efficiency of Pb(II) from aqueous solutions by sorption on a bifunctional acrylic ion exchange resin with groups of hydroxamic acid and amidoxime is presented. It was found that Pb(II) sorption potential varies as function of solution pH, initial metal concentration, contact time and temperature. From aqueous solutions with Pb(II) initial concentration of 82.96 ?ŽÂ?g/mL the sorption percentage is 98.64%. The Langmuir and Freundlich isotherms were used to model the Pb(II) ...
Autori: Anca Ceica, Carmen Paduraru, Igor Creţescu, Lavinia Tofan, Violeta Neagu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25586

Abstract Wastewaters of textile and leather dying industries contain significant quantities of water-soluble dyes. Moreover the temperature and pH of these wastewaters may be controlling variables affecting the biosorption performance. In this study the sorption of dark blue dye by Aspergillus biomass and peat was studied as a function of temperature, initial dye concentration, and initial pH values. In addition, the effects of sorbent dosage on the sorption processes were systematically stud...
Autori: Cornel Cojocaru, Cornel Pohontu, Igor Creţescu, Mariana Diaconu, Roxana Elena Benchea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25587

Abstract Chromium (Cr) is one of the most common metal contaminants in soil because of its use in ore refining, production of steel and alloys, metal plating, tanneries, wood preservation, and pigmentation. In soil environment, the most stable oxidation states of chromium are Cr (III) and Cr (VI). While Cr (III) is considered an essential trace element for the functioning of living organisms, Cr (VI) is toxic and carcinogenic to humans via inhalation for long exposures, since it is easily sol...
Autori: Dumitru Bulgariu, Laura Bulgariu, Maria Gavrilescu, Raluca Maria Hlihor, Vasile Lucian Pavel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25590

Abstract The aim of this study is the evaluation of photo-Fenton as a suitable advanced oxidation process to degrade ampicillin and streptomycin antibiotics. The degradation was studied by monitoring the organic substrate concentration changes in aqueous solution as a function of reaction time using COD analysis. The oxidation process follows two successive stages. In the first stage (I) the oxidation of the antibiotics takes place with high reaction rate, leading to intermediate oxidation pr...
Autori: Cristina Orbeci, Daniela Simina Stefan, Ion Untea, Madelene Dancila
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25602

Abstract This paper applies a fuzzy method for the estimation of the daily electrical energy consumption of the fresh water hydrophore stations of a water distribution system. Based on the uncertainties of the water distribution system, the fuzzy logic was used to simulate a correlation between water and electrical energy quantities. Thus, the proposed method is proven as a useful tool for estimation of the daily electrical energy consumption considering the flow and the pressure growth of th...
Autori: Gheorghe Grigoras, Marcel Istrate
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25607

Abstract Some samples consisting in silica functionalized in different degrees with dihydroxy-azomethine groups have been tested as sorbents for copper (II) ions from aqueous solutions in different conditions. An indirect monitoring procedure for the complexing process was approached: UV-VIS absorption intensity ? time variation for the metal-containing solution in which complexing silica was soaked. In order to find the conditions in which the maximum efficiency in the metal absorption can b...
Autori: Ciprian-George Piuleac, Maria Cazacu, Silvia Curteanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25608

Abstract Characterization of soil permeability is of great importance for several geotechnical analyses. In common practice, because of the difficulty in sampling of granular material, constant head permeability tests are usually employed on specimens having similar relative densities to those in the field. An alternative approach to permeability tests for granular soils is the prediction of permeability levels by means of empirical equations depending on several particle size distribution an...
Autori: Alper Sezer, Burak A. Goktepe, Selim Altun
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25609

Abstract The adsorption behavior of bael tree (BT) leaf powder for cadmium ions from aqueous solutions has been investigated as a function of appropriate equilibrium time, adsorbent dose, adsorbate concentrations and pH using a batch system. Studies showed that the pH of aqueous solutions affected cadmium removal as a result of the fact that removal efficiency increased with increasing solution pH. The maximum adsorption was 93.56% at solution pH equal to 6.0, contact time of 30 min and initi...
Autori: Ponnusamy Senthilkumar, Rangasamy Gayathri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25621

Abstract Mathematical modeling of the ultrafiltration (UF) process is motivated by the complexity of retention phenomena that occur during the UF in conjunction with the complexity of wastewater matrices submitted to ultrafiltration, as well as by the need to predict the process behavior in extreme conditions, such as high pollution loads for UF-membrane cleaning cycles optimization or for automated control of the process. Thus, series of laboratory-scale ultrafiltration experiments were perf...
Autori: , George Barjoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25630

Abstract Textile dyeing process is an important source of contamination responsable for the continous pollution of the environment. Control of water pollution has importance for both organisms, which live in water and those who benefit from water. Many dyes reaching the water source are difficult to decompose and cause many problems due to their carcinogenicity. Consequently, it is important to remove these pollutants from wastewater before their final disposal. This paper reports the resuls ...
Autori: Alina Dughila, Alina Stefanache, Cornel Pohontu, Igor Creţescu, Mariana Diaconu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25633

? AN ASSESSMENT OF OPERATIONAL PARAMETERS FOR THE REMOVAL OF CHLOROPHENOLS FROM WASTEWATER ? ENVIRONMENTAL SCIENCES: A PSYCHOLOGICAL-BEHAVIORAL MODEL FOR RESEARCHERS ? ECOLOGICAL AGRICULTURE: DYNAMICS OF THE BIOLOGICAL ACTIVITIES IN SOILS CULTIVATED WITH MAIZE UNDER THE INFLUENCE OF ORGANIC FERTILIZATION ? SOLAR-ASSISTED JOULE-BRAYTON ENGINES USED TO REDUCE CARBON DIOXIDE EMISSIONS ? STUDY OF THE ENVIRONMENTAL EFFECTS OF HEATING SYSTEMS ? MIXED JET-VORTEX METHOD FOR ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25662

? COMPARATIVE CONSIDERATIONS ON THE STRUCTURE OF SOME MOLYBDENUM/NIOBIUM DOUBLE PEROVSKITES OXIDES ? THE INFLUENCE OF THE STORAGE TIME ON THE STABILITY OF BUTTER ? CaCO3 CONTROLLABLE SYNTHESIS BY DOUBLE EXCHANGE METHOD USING CaCl2 RESIDUAL SOLUTIONS ? OPTIMIZATION OF COAGULATION-FLOCCULATION IN THE TREATMENT OF CANAL WATER ? ANODIC DETERMINATION OF PENTACHLOROPHENOL FROM WATER USING CARBON NANOFIBER-BASED COMPOSITE ELECTRODE ? STUDY OF PRECIPITATES GROWTH IN COAGULATION ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25663

? POST-DARCY FILTRATION THROUGH RIGID PERMEABLE MEDIA ? BIOSORPTION OF Cr(VI) FROM AQUEOUS SOLUTIONS ONTO Hydrilla verticillata WEED: EQUILIBRIUM, KINETICS AND THERMODYNAMIC STUDIES ? IMPACT OF BUILDING A TIDAL GATE ON THE YONGJIANG RIVER IN CHINA ? MONITORING OF THE HYDROTECHNICAL TORRENT CONTROL STRUCTURES: A STATISTICAL APPROACH ? RESEARCH ON SOIL PROPERTIES CONSERVATION DURING THE PREPARATION OF GERMINATION BEDS IN GREENHOUSES ? MANAGEMENT OF THE POTATO CROPS FOR MIN...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25664

? Environmental Engineering and Management Journal, Vol. 9 Nr. 4 ? THE PROTECTION OF EQUIPMENTS USING VOLATILE INHIBITORS ? CONTINUOUS SURFACE TEMPERATURE MONITORING TO ESTIMATE SENSIBLE HEAT LOSS BY BUILDING FINISHES ? RECYCLE OF POLYAMIDE DYEING WASTEWATER FOLLOWING DECOLORIZATION WITH POLYMERIC SORBENTS ? PERFORMANCE EVALUATION OF AMINO ACID SALT-BASED COMPLEX ABSORBENTS FOR CO2 CAPTURE ? ADSORPTION EQUILIBRIUM STUDIES ON COPPER (II) IONS REMOVAL BY NATURAL WASTE USIN...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25666

? HYDROGEL MICROSPHERES BASED ON ENVIRONMENTALLY FRIENDLY POLYMERS WITH POTENTIAL BIOMEDICAL APPLICATIONS ? STUDY ON THE MIXING EFFICIENCY IN A BASKET BIOREACTOR WITH IMMOBILIZED YEASTS CELLS ? MANAGEMENT OF WASTE FROM ELECTRICAL AND ELECTRONIC EQUIPMENT IN CYPRUS ? A CASE STUDY ? SEPARATION AND CHARACTERIZATION OF ANTHOCYANINS BY ANALYTICAL AND ELECTROCHEMICAL METHODS ? AN INTEGRATED DECISION AID FOR IDENTIFYING AND PRIORITIZING STRATEGIES IN FOREST MANAGEMENT ? INFLUEN...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25668

Biosorption of lead (II) onto the biosorbent, represented by untreated S. cerevisiae and NaOH-treated S. cerevisiae was examined and the effects of contact time were investigated. The lead (II) biosorption was fast and equilibrium was attained within 90 mins. The maximum removal ratios of lead (II) for untreated S. cerevisiae and NaOH-treated S. cerevisiae after 3 h were 48.6% and 92.5%, respectively, with initial lead (II) concentration of 40 mg/L and optimum pH of 5.0. Data obtained from batch...
Autori: Ying Zhang, Yingjie Dai, Baiyin Liu, Fang Ma, Ru Zheng, Limin Donghttp://www.ecozone.ro/reviste.php?RID=25670

Ecological adaptation of heavy metal polluted environments is significantly enhanced through plants inoculated with plant growth-promoting bacteria (PGPB), and the cost of phytostabilization in metal tailings can be reduced. On the basis of the systematic investigation of manganese tolerant plants which grew on Xiangtan manganese tailings, rhizosphere soils of th Chenopodium album Linn. were collected. One yellow manganese-resistant strain named XZL01 was isolated from the rhizosphere of fresh p...
Autori: Shengguo Xue, Yameng Ma, Xiaohua Zhou, Xiyan Zhou, Fenghao Liuhttp://www.ecozone.ro/reviste.php?RID=25696

This study investigated the effectiveness of using anaerobic effluent as a nutrient supplement for cultivation of green algae Chlorella sp. Different concentration of 0%, 15%, 30%, 45%, 60%, 75%, 90% and 100% which were raw (group �r�) as well as autoclaved (group �a�) were applied to the anaerobic effluent and algae growth. They were compared in terms of growth rate and final algae biomass production. In the initial cultivation days, slower growth rates with an increased anaerobic efflu...
Autori: Yubi Chen, Renjie Dong, Gaojun Peng, Zhu Yi, Shuhao Huo, Yupeng Liu, Changle Panghttp://www.ecozone.ro/reviste.php?RID=25701

The combination method of culture and PCR-DGGE technique is applied for a preliminary study of the diversity of the different contaminated soil. The bacteria DNA of the soil was extracted and used for PCR-DGGE analysis. The results show the plant height, total weight and florescence of two tested plant, inhibited by adding phenol or hexadecane in the soil. There are significant differences between test groups which add contaminants and control group, and no significant differences between test g...
Autori: Hai-Juan Ma, Guang-Ming Li, Ya-Lei Zhang, Ping Fanghttp://www.ecozone.ro/reviste.php?RID=25706

Abstract:A specific topical issue both for small hydropower plants and wind turbines refers to the discrepancy between the relatively lowspeed of the water turbine/wind rotor and relatively high speed of the electric generator: the turbine/rotor has higher performancesat lower speeds, while the generator performances are increasing with the speed. Usually, this problem can be solved connecting aproper speed increaser between the turbine (increaser input) and generator (increaser output). Besides...
Autori: Codruta Jaliu, Oliver Climescu, Radu Saulescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25732

Abstract:It is of major importance that the mechanical structures and components of a photovoltaic (PV) system to have the same durabilityas the PV modules. The embodiment design process of the mechanical structure becomes significant as the results provide anoverall view of the PV system durability. The performance of the mechanical system must be attained based on functional andoperational requirements of the PV system. Therefore, the modelling and theoretical analysis of the mechanical behavi...
Autori: Bianca Butuc, Gheorghe Moldovean, Radu Velicu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25757

Abstract:The aim of this paper is to present an assessment of the importance of mobility in the context of lifelong learning in the field offuture human resources - students, in particular - in order to contribute to sustainable development. Developing, adapting andbroadening the range of skills of individuals to create and fill the jobs of the future are the most important contemporary Europeanaim. The process of improving workforce skills involves a mutual gain for both employers and companies...
Autori: Crina Radulescu, Madlena Nen, Radu Stoika
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25759

Abstract:The increasing of energy consumption and fossil fuel emissions (especially CO2, SO2 and NOx) and the limitation of crude oilreserves, determined a growing trend toward renewable energy technologies, like solar, wind, geo-thermal energy and biomass forbiofuels.From all the renewable energies sources, biomass attracts more and more interest being a renewable resource with economicpotential, which can be found all over the world, with positive environmental properties due to neutral emissi...
Autori: Anca Sauciuc, Angela Potetz, Georg Schlaub, Gerald Weber, Hermann Hofbauer, Lucia Dumitrescu, Reinhard Rauch, Ziad Abosteif
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25762

Abstract:A thermodynamic model for studying the overall efficiency and power output of a solar assembly using a Stirling engine ispresented. It is based on the application of the energy and exergy balance equations to the system components. The results of theproposed model are generated as a function of solar incident radiation whose analytical estimation is presented. The numericalapplication is set for a solar assembly operating in Bucharest, composed by a parabolic dish mirror, a plane receiv...
Autori: Adina Gheorghian, Alexandru Dobrovicescu, Camelia Stanciu, Dorin Stanciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25764

Abnstract:In recent years, solar receivers have been employed in several applications where high temperature fluids are involved, such aspower plants and solar thermal reactor. The possible presence of high temperature gradients could determine reduced receiverefficiency and a short life of the material. Thermal and fluid dynamic analysis of the receiver allows to highlight possible presenceof temperature gradients and to evaluate their values and the more critical zone of the material. Compress...
Autori: Alina Adriana Minea, Oronzio Manca, Salvatore Tamburrino, Sergio Nardini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25779

Abstract:In this paper, the mathematical model is improved by considering the density variations of the liquid from the pollution source vs.pollutant’s concentration of this liquid and by including the sorption-desorption term (SDT), which takes into account thisphysical process, played by a first-order decay model defined by two coefficients and an exponent. In order to practically use thisimproved mathematical model, the authors inferred the calculating relationships from automatic processin...
Autori: Daniel Bucur, Esmeralda Chiorescu, Gheorghe Ţigaret
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25783

Abstract:The present paper presents an enhanced Activated Sludge Model No. 1 in which nitrification and denitrification are modelled astwo-step processes. The nitrification process is considered as a sequence of two steps carried out by two distinct genera ofbacteria, with nitrite as an intermediate product. For the denitrification process a parallel approach was used that considers nitrateand nitrite to be directly reduced to molecular nitrogen. The new model is compared to the original Activat...
Autori: George Simion Ostace, Paul Şerban Agachi, Vasile Mircea Cristea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25786

Abstract: The paper focuses on eutrophication due to nutrients load into a reservoir. A thermally stratified reservoir water body is divided in vertical layers and horizontal zones according to water temperature and depth. The layers show different compositions of limiting nutrient because of the density of flow and due to inhabitants on the bottom of the reservoir exposed to sunlight. The bioassay for algal growth potential test (AGPT) is the most direct and effective way to determine a limitin...
Autori: Dimitri Solomatine, Ioana Popescu, Jae-Ki Shin, Nahm-Chung Jung, Peter Kelderman, Roland K. Price
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25798

Abstract:Energy Efficiency is a topical concept managed by a wide variety of individuals and institutions from very different areas, bothacademic and professional. Economists, Engineers, Environmentalists, Lawyers and other specialists show, each one of them, anspecific dimension of this so relevant concept, not only for its implications on global evolution of Earth but for its impact onbenefit functions of enterprises.What this paper proposes is to shape a theoretical framework in which, firstl...
Autori: Jesus Rivas, Marta Magadán
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25819

The relationships between economic growth, environmental sustainability and energy are of great interest among researchers and policy makers. One of the theoretical conclusions that have received most attention is the convergence of the per capita carbon emission levels. But empirical results of theoretical growth models that include the environmental variable or estimated Environmental Kuznets Curve are not conclusive. This paper uses a multivariate state-space model to examine the process of c...
Autori: Gema Fernández-Avilés, Jose Mondejar-Jimenez, Josep Illa, Manuel Vargas-Vargas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25823

Environment and sustainability are key issues for the policy maker. A policy should be first designed and realistically inserted in its proper context (regional, national, European) in order to be correctly assessed. After that, suitable models need to be chosen consistently with the policy context and with the evaluation purpose, to make easier the policy maker task. The aim of this paper is twofold. Firstly, to propose a Statistical Information System (SIS) approach in order to correctly write...
Autori: Giorgio Garau, Giovanni Mandras, Lucia Schirru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25827

� SUSTAINABILITY IN ENVIRONMENTAL REMEDIATION � EVALUATING THE CLIMATIC CHANGES IN THE HYDROLOGICAL FLOW REGIME OF THE MOLDAVIAN AREAS � ENSURING ECONOMICAL AND FINANCIAL SUSTAINABILITY: STATE FISCAL CONTROL - A WAY TO PREVENT AND REDUCE TAX AVOIDANCE � COMBINED OXIDATION AND ULTRAFILTRATION PROCESSES FOR THE REMOVAL OF PRIORITY ORGANIC POLLUTANTS FROM WASTEWATERS � THE FREE LEVEL UNIFORM POST-DARCY FILTRATION THROUGH A SPHERE-MADE HOMOGENOUS MEDIUM � HSLA ST...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25838

The removal of Cr (VI) from aqueous solutions by sphagnum peat moss was investigated in batch experiments as a function of solution pH and initial Cr (VI) concentration. The highest removal percentage (R=99%) was obtained at pH = 1, in solutions of 20.8 mg Cr (VI)/L. In order to establish the mechanism of the removal process, Cr (VI) and total Cr (Cr (VI) + Cr (III)) in residual solutions was analyzed. The Cr (VI) removal by the peat moss at low pH is governed by two processes – electrostatic ...
Autori: Catalin Balan, Doina Bilba, Irina Volf, Matei Macoveanu, Petru Bulai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25849

This paper is part of LCA studies performed in the frame of FP7 project �Recovered Paper Sorting by Innovative Technologies - SORT IT�. It analysis the results obtained by Life Cycle Impact Assessment (LCIA) of the reference case for recycled packaging paper manufacturing (current sorting technology), which will constitute a comparison base for new sorting technology developed in SORT IT project. The main stages considered in the life cycle were: recovered paper (RP) transport from collectio...
Autori: Alina Iosip, Antonio Dobon, Elena Bobu, Mercedes Hortal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25860

The present study describes the preparation of a filtering medium from a polymeric cellulosic support (filter paper) by functionalization with monochlorotriazinyl-β-cyclodextrin. The permanent immobilization of cyclodextrins confers the new material special properties and the potential for a better decontamination of liquid and gaseous effluents. The structure, physicomechanical and filtration properties of the filter paper, successfully functionalized with MCT-β-CD, have been emphasiz...
Autori: Ana-Maria Grigoriu, Constantin Luca, Florin Ciolacu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25862

This paper presents a new photo-Fenton procedure applied in oxidative degradation of organic pollutants using 4-chlorophenol (4-CP) as low biodegradable testing compound. The homogeneous photo-Fenton process was modified by using a photo-catalytic reactor equipped with a steel wire mesh which acts as source for Fe2+ catalyst generation into reaction medium and as heterogeneous catalyst, by iron oxy-hydroxyl compounds formation on the surface. The oxidation process was evaluated by measuring the ...
Autori: Adina-Elena Segneanu, Cristina Orbeci, Ion Untea, Mihaela Emanuela Craciun, Rodica Stanescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25864

The first part of this work presents the development and implementation in the Benchmark Simulation Model No 1 (BSM1) of a modified Activated Sludge Model No 3 (ASM3). The enhanced ASM3 presented in this study has three modifications compared to the original ASM3. The first modification is the representation of the simultaneous heterotrophic biomass growth on the primary substrate and on the internal storage products. Second, nitrification is modeled as a two-step process with nitrite as an inte...
Autori: George Simion Ostace, Paul Şerban Agachi, Vasile Mircea Cristea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25865

Among the different types of waste products tested, the bark of different Pinus species have been identified as a promising class of low- cost sorbents for heavy metal binding. In this context, the potential of Romanian pine bark wastes as green and economical sorbent for cadmium (II) ions removal from aqueous solutions has been tested in batch conditions as function of initial pH, contact time, sorbent dose, metal ion concentration and temperature. The equilibrium data at three different temper...
Autori: Anca Miron, Brindusa Robu, Carmen Paduraru, Lavinia Tofan, Roxana Laura Mihailescu Amalinei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25871

In this paper, Cadmium and Zinc removal from soil by phytoremediation was investigated. The experiments were carried out with two types of plants, Brassica napus and Triticales sp. Response surface modeling and optimization of Cd and Zn removal rate was performed for each type of plant under controlled conditions, i.e. as a function of Cd concentration, Zn concentration and pH. Although the maximum heavy metal uptake (i.e. 2.4 % Cd removal rate and 1.80 % Zn removal rate, respectively) was obtai...
Autori: Corneliu Pohontu, Gabriela Soreanu, Igor Creţescu, Matei Macoveanu, Paula Caraiman Cojocaru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25881

Since the last century, as a consequence of advanced industrialization, the remarkable growth of population, and its mobility have turned the field of transport into the main factor responsible for air pollution attributable to mobile sources of pollution. The continuous accumulation of various pollutants in the environment determines severe consequences on humans, animals and plants, buildings, works of art and landscape. Road transport represents, through its characteristic features – high f...
Autori: Gabriela Mitran, Ion Tabacu, Sorin Ilie, Viorel Nicolae
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25898

AbstractThe detection of environmental pollutants has challenged conventional chemical analysis for the rapid estimation of thebioavailability and toxicity of the contamination impact on human health and ecosystems. Magnetic nanoparticles (MNPs)functionalization as bioreporters can enhance the ability for biosensing in complex contaminated samples such as soils, and theimmobilization of bioreporters will promote the detection of gas and online monitoring. In this study, Acinetobacter baylyi ADP1...
Autori: Aizhong Ding, Cheng Chen, Dayi Zhang, Musen Duan, Steven F. Thornton, Wei E. Huang, Yanjun Luo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25952

AbstractThe regional ecological risk assessment of water resources has spatial, nonlinear and stochastic characteristics. GIS technologycan handle large volumes of spatial information, conduct spatial analysis and spatial data management operations. It visuallydisplays the distribution trend of environmental factors and the relationship between topology and regional water ecological riskpattern. This paper presents the five stages of the application of GIS in the regional ecological assessment o...
Autori: Lin Gang Wang, Ning Lian Wang, Xiao BoWu, Ya Qian Zhao, Yin Ge Liu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25958

AbstractDue to rapid growth in both population and economic development in China, water demand is increasing dramatically andChina is facing more and more severe water scarcity problems. Thus competitions for water (between uses, users and regions) areincreasing which make water use efficiency an important issue in China, together with the uneven spatial and temporaldistribution of water, all of which drive the Chinese government and water planners to find the optimal water resource allocationpl...
Autori: Adrian T. McDonald, Linda See, Martin Clarke, Yanan Jiang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25961

AbstractBy investigating the basic physicochemical characteristics, nutrients (nitrogen, phosphorus and potassium) and heavy metalconcentrations of the excess sludges from four wastewater treatment plant (WWTP) in Xi’an city, the feasibility of applyingsewage sludge to landscaping in Xi'an was studied. The results showed that the basic physicochemical properties of sewagesludge satisfy the requirement of most plants growth. The sewage sludges are rich of organisms, nitrogen and phosphorus, butre...
Autori: Bohan Yin, Qin Zheng, Rixia Zhang, Sheping Wang, Xinan Liu, Zhengliang Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25964

A fast economic development in China over thelast three decades has lifted hundreds of millions ofpeople out of poverty. However, an annual GDPincrease of over 10% due to the large scale industrialactivities and fast urbanization has released substantialamounts of pollutants into the environment and exertedtremendous pressure on local ecosystems. Although alarge amount of investment has been made by theChinese government and a series of efforts have beenmade by the environmental regulators, scie...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25965

AbstractChina has experienced enormously rapid development since the open door policy introduced in 1979. Population has increasedby 30% to 1.3 billion, and the annual GDP growth rate was 9.8 % in the last few years. However, frequent water disasters inrecent years have caused significant damages to China’s regional growth and societies. There are huge contemporary challengesfor Chinese water resource management. In this paper, we examine three major challenges for China’s water resourcemanageme...
Autori: Dabo Guan, Faith Ka Shun Chan, Joseph Holden, Yanan Jiang, Yaqian Zhao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25966

“The Exploratory Workshop „Progress inEnvironmental Engineering, Biotechnology andManagement in The Frame of Knowledge-BasedSustainable Economy” took place in the contextwhen worldwide research shows that the currentindustrial system supports a population that useresources and generates waste, consuming the Earth'ssupply, but who’s biocapacity is far outweighed bythe increased demand of products for a developmentsystem that often works on unsustainable bases.Today’s challenge is the integration ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25969

AbstractThe preliminary assessment of a cost-effective flow-sheet for the production of biodiesel from microalgae lipid fraction wascarried out. The study was based on approximated cost-estimation methods integrated with the simulation software Aspen PlusŽ.Several scenarios were investigated to compare costs regarding the main steps of the biodiesel production process. Ranges ofinput variables from downstream literature and experimental data were used to simulate the sections that define concret...
Autori: Antonio Marzocchella, Giuseppe Olivieri, Piero Salatino, Teresa Guida
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25973

AbstractIn this paper integrated network of continuous reactors for the decontamination of gaseous flows in heterogeneouscatalytic gas-liquid-solid – also applicable for bioremediation systems is investigated. For this purpose, duringprocess integration we have identified strategies to develop an optimal system for a variety of well-definedrequirements and to discover ways to ensure cost efficiency to achieve the requirements of sustainable industry in theframe of knowledge-based sustainable eco...
Autori: Maria Gavrilescu, Oana Marlena Penciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25977

This special issue of EnvironmentalEngineering and Management Journal is dedicated tointerdisciplinary research and discusses multipleresults addressing environmental issues inElectromagnetic Compatibility (EMC) andEngineering in Medicine and Biology (EMB) areas.Some of the most significant researchdirections considered in this issue entail theelectromagnetic pollution together with a survey ofelectromagnetic environment in order to analyze andquantify the biological and health effects ofelectro...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25990

AbstractThe use of planar electromagnetic technology led to the improvement of high frequency characteristics of the structures and thedecrease of their size and profile, which made them easier to integrate in different devices. In order to improve these planarstructures, it is known that the parasitic capacitance (EPC) must be decreased. Another method to achieve a better functionality isto increase or decrease the high frequency losses, according to their use. Because the previous studies were...
Autori: Adina Racasan, Calin Munteanu, Claudia Hebedean, Claudia Pacurar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25996

AbstractElectrocardiogram (ECG) signal processing systems must consider various levels of noise/artifacts and develop the techniquesto deal with wide range of noise situations. The authors develop a method based two functions (Wigner and Wavelet),highlighting the importance of selecting one of these functions for signal processing in real-time or off-line case. Making use ofvirtual instrumentation, it was showed that Wigner function can be appropriate for real time monitoring and for mobile devi...
Autori: Marius Branzila, Valeriu David
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26003

AbstractIn this paper we describe a wireless system, including smart sensing nodes for indoor air quality and unobtrusive cardiorespiratorymonitoring. The sensing nodes include a set of solid state gas sensors, sensors for temperature and relative humidity, amicrowave Doppler radar sensor for cardio-respiratory function, and appropriate conditioning circuits expressed by active filtersand amplifiers. The analog signals provided by the signal conditioning circuits is applied to a data acquisition...
Autori: Gabriela Postolache, Octavian Postolache, Pedro Silva Girăo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26007

AbstractThe aim of this study was to evaluate the effect of polyphenolic extract and deuterium depleted water (DDW) as bioregulators inmaize (Zea mays L.) plant cultivation. The aqueous extract obtained from spruce bark (two levels of concentration), pure DDWand DDW in combination with spruce extract were used. The test solutions were applied by spraying and the maize plant growthand alelopatic effect on the development were studied. The following specific plants parameters were monitored: growt...
Autori: Corneliu Tănase, Irina Volf, Valentin I. Popa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26012

AbstractDue to high energy costs and the rising consciousness of energy issues in the textile industry, saving energy became a significantproblem. Since a large amount of the energy required in textile finishing is needed in the form of steam for various processes,recovering wastewater heat has great potential for cost reduction. In this research, it was studied the heat recovery from cellulosictextiles finishing wastewater, based on a case study in a textile company. After examining the wastewa...
Autori: Armand F. Bertea, Gheorghe Condurache, Răzvan Berariu, Romen Butnaru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26013

• STUDIES ON HEAT RECOVERY FROM CELLULOSIC TEXTILES FINISHING WASTEWATER    • ASSESSMENT OF SYNERGIC REGULATORY ACTIONS OF SPRUCE BARK EXTRACT AND DEUTERIUM DEPLETED WATER ON MAIZE (Zea mays L.) CROPS    • LUNG CANCER RISK INDUCED BY RESIDENTIAL RADON IN CLUJ AND ALBA COUNTIES, ROMANIA    • A CLEAR SKY IRRADIATION ASSESSMENT USING THE ESRA MODEL AND SRTM DATABASE    • ENVIRONMENTAL FACTORS ASSOCIATED WITH DYSPHONIA IN PROFESSIONAL VOICE USERS    ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26014

AbstractThe HR BREACH model is a physically based numerical model for the simulation of breach initiation and formation throughembankment dams, dykes, and flood embankments. The model is used for the analysis of homogenous as well ascomposite/zoned embankments. Simulation can also include the effect of surface protection such as grass or rock blocks. Twobreach failure modes are available: failure by overtopping and failure by piping. Breach growth can proceed through surfaceerosion or head-cut e...
Autori: Andreja Jonoski, Ioana Popescu, Mark Morris, Mohamed Hassan, Tseganeh Gichamo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26017

AbstractMultifunctional materials based on iron substituted anionic clays and their derived mixed oxides owning specific porousproperties and textural characteristics are synthesized, characterized and tested as photocatalysts in the process of the azo-dyesdegradation from aqueous solutions. The features of X-ray diffraction patterns point out the modification of the lattice parameterswhen Fe3+ is substituted Al3+ in the brucite like layer. N2 adsorption-desorption analysis reveals specific poro...
Autori: Carmen Gherasim, Gabriela Carjă, Magda Puşcaşu, Mihaela Bîrsanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26024

AbstractIodine is essential for the synthesis of thyroid hormones which are extremely important in the process of growth and developmentof human body. The effects of iodine deficiency implies thyroid enlargement (goiter) and others disturbances so called iodinedeficiency disorders (IDD). The iodine deficiency is an ancient but still existing problem with medical and environmentalconnotation. Soil and water from various regions worldwide are iodine deficient. This problem is aggravated by defores...
Autori: Carmen Vulpoi, Cristina Cristea, Cristina Preda, Letitia Leustean, Maria Christina Ungureanu, Maria Gavrilescu, Voichita Mogos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26038

AbstractWater and its sustainable use is closely connected to developments in other fields, such as industry, agriculture and services,energy, nature conservation and health. The pressures imposed by the higher water demands, quality of discharges and climatechange raise new water challenges which can be overcome only by coordinated efforts of multiple stakeholders throughcooperation and participatory processes.This study presents how public participation – within the context of integrated water...
Autori: Carmen Teodosiu, George Bârjoveanu, Joanne Vinke-de Kruijf
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26039

In 2012, the Faculty of Hydrotechnics,Geodesy and Environmental Engineering of The"Gheorghe Asachi" Technical University of Iasi,Romania celebrated 50 years of education in the fieldof hydraulic engineering at the Polytechnic Instituteof Iasi.In 1948, in the same time with the EducationReform in Romania, in Galati, the Faculty ofHidrology was founded. At the same time, studentswho were attending the Rural EngineeringSpecialization in Bucharest were also transferred tothe new established Faculty....
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26048

AbstractIncreasing the labor force employment and participation rates is sustained by capitalization of human opportunities existent inrural areas. This entails a flexible and inclusive labour market and a decreasing rate of exclusion for some rural groups.This paper highlights the need of facilitating the access to the labour market by achievement of professional skills needed in nonagriculturalsectors from rural areas for the vulnerable groups as well as the entrepreneurial groups. The analysi...
Autori: Carmen Olguta Brezuleanu, ,
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26059

AbstractBasic principles for assessing phytotoxicity are the same whether the test compound is a heavy metal, herbicide, fungicide,insecticide or other toxic compounds. The difference lies not in the method of evaluation, but in the experimental program andworking methodology.In this paper the phytotoxic effects of heavy metals, Cr (VI) and Cd (II) on plants germination and growth were studied. Stocksolutions of the two heavy metals were prepared at a concentration of 1000 mg/L, in distilled wat...
Autori: Dana Luminiţa Sobariu, , Maria Gavrilescu, Mariana Diaconu, Vasile Lucian Pavel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26062

AbstractConsidering the decrease water resources in the past decade, research for rational solutions on water use has become a worldwideconcern. Agriculture is the largest consumer of water, and when the soil moisture level is not assured of precipitation, it issupplemented by irrigation. In the current context of climate change, and consequently the arid territories growth, the researchersare looking for solutions to rational water consumption, and equally to cover the deficit of water in agric...
Autori: Cristina Elena Iurciuc,
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26072

AbstractOne of the main objectives of S.C. AVI-TOP S.A. Războieni – Iasi management is the implementation and continuousimprovement of a functional environmental management system in accordance with European standards and their integration intothe unit’s management systems. Environmental management strategy at S.C. AVI-TOP S.A. Războieni – Iasi aims to achieve abalance between economic and environmental protection outcomes, directing all activities towards eliminating pollution. Thepap...
Autori: Aurel Chiran, Benedicta Drobotă, Elena Gindu, Monica-Ionela Pandelea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26076

AbstractExperiments were designed to optimize the Cr(VI) adsorption on Salvinia cucullata. The significance of different adsorptionparameters along with their combined effect on the adsorption process has been established. A regression equation wasformulated by representing percentage of Cr(VI) adsorption as a function of different independent variables such as contact time,pH, adsorbate concentration and adsorbent dose. The insignificant terms were assessed through student ‘t’ test and are remo...
Autori: Saroj Sundar Baral
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26084

AbstractWaste electrical and electronic equipment (WEEE, e-waste) represent the category of municipal waste with the fastest growthrate of the quantities generated particularly in developed countries. In Romania the WEEE management concerns have emergedrecently and the amount of information and data available is limited and sometimes irrelevant. In this case, studying the forcesthat influence WEEE management system directly or indirectly is useful for both the national and international stakehol...
Autori: Nadia Ciocoiu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26092

Mother Earth Investments AG, is actively working onthe development 2nd generation bioenergy feedstocks.In this book, Mr. Jansen generously shares hisknowledge in the field, in particular, regarding thechallenges and opportunities in development ofbiomass-derived fuels. This essential guide toinvesting in bioenergy commodities details secondgeneration biofuels from a scientific, technical andeconomic perspective, and discusses their globalenvironmental, political and financial impact.The book is ...
Autori: Roland A. Jansen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26100

The book edited by Haibo Xie and NicholasGathergood focuses on one of the most importantscientific issues of the 21 century which is thereplacing fossil fuel with sustainable alternatives suchas biomass. Fossil fuels are conventional rawmaterials for many industrial sectors includingchemical and energy production. Usage of fossil fuelis limited by their availability, price and carbonfootprint. Biomass is a renewable resource globallyavailable, cheaper and carbon sequestering. Step bystep shiftin...
Autori: Adrian Catalin Puitel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26101

Abstract According to the Water Frameword Directive the classification of water bodies environmental quality and the achievement of “good status” by 2015 are requested for all the European aquatic environment, including transitional waters such as coastal lagoons. Although progresses have been done and many results have been achieved, several aspects of the WFD implementation can be further improved and current limitations are more evident for some categories of water bodies such a...
Autori: Andrea Critto
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26103

Abstract Poly(hydroxybutyrate) (PHB) is a biodegradable thermoplastic polyester with very high potential for industrial applications. The properties could be improved by mixing with another polymer, natural or synthetic, such as poly(vinyl alcohol) (PVA). The resulting polymer blends are potentially able to achieve the desired performance for different applications. Biodegradation modifies mechanical, physical and chemical properties of a given material. PHB are degraded by diverse...
Autori: Luiza Jecu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26111

Abstract Using lab experiments, the heavy metal tolerance of young ectomycorrhizal trees was assessed in two axenic systems, co-cultures on germination medium and a sandwich technique system with Modified Melin-Nokrans medium. Sterilized seeds of the tree species Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) were inoculated with the ectomycorrhizal fungi Paxillus involutus and/or Tricholoma vaccinum in media containing either 10 mM CsCl or 0.25 mM CdCl2. The behavio...
Autori: Maria Lucia Bizo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26119

Abstract Heavy metals are common contaminants of freshwaters and they can produce toxic effects on aquatic fauna and flora. The ions of heavy metals existing in freshwaters are well known as toxicants for the aquatic organisms. Duckweed is an aquatic plant of small size that floats on fresh water surface of lakes and marshes. The small plants are highly exposed to aquatic pollutants and as a result they are very sensitive to the toxic effects. As consequence the duckweed plants are...
Autori: Vasile Oros
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26122

Abstract This research analyses time series of air temperature and wind speed. Trends and periodical components are defined for both time series with no significant statistical relationship between them. The spectral analysis of temperature series with no trends shows the peak frequency fc = 1/12, corresponding to a seasonal periodical component. The graph of the spectral density function of the wind speed time series does not manifest a seasonal periodic component. Forecasting of ...
Autori: Rasid Burtiev
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26135

Abstract Our researches have focused primarily on variations of different biophysical and biochemical effects on vegetal and animal material at macro, micro, and ultra-micro scale resulted from changes in environmental condition. Growth and spectral parameters of rapeseed seedlings from seeds exposed to UVA-VIS radiation with a high pressure lamp which emits incoherent continuously radiation for different time periods were examined 14 days after germination. These studied parameter...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26138

Abstract Pesticides can be considered useful to eliminate pests, but can also induce negative effects to the processes of germination, growth and development of plants or disrupt some physiological and metabolic processes. By studying the effect of pesticides on treated seeds germination, and determination of growth indices, it was possible to evaluate the positive or negative influence or toxicity of the chemical compounds. The aim of this research is to highlight the effects of d...
Autori: Daniela Nicuţă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26142

Abstract The paper presents several aspects regarding the optimization of the operation for a mixed cycle gas turbine, Titan 130S type, installed at S.C. CET S.A. Bacau, during the warm season. The optimization entails the partial loads operation and has been done using the multicriterial analysis, taking into consideration the operation restrictions required for this type of gas turbine. The criteria that regard this analysis are: thermal energy requirements, the global efficiency...
Autori: Marius-Ion Stanila
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26145

AbstractSurface mining has the most obvious and direct influence on ecology. It has great effects on the vulnerable ecologicalenvironment in Shendong coalmine area. Therefore, it’s necessary to develop an ecological protection technology whichcontributes to a positive evolution of the open desert mining area. In view of the natural conditions, soil characteristics andfeatures of ecological functions of Majiata open-pit coalmine, technology of in-situ ecological construction of desert open pitcoa...
Autori: Yongkang Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26164

AbstractIn the conventional water flooding process of Daqing Oilfield in China, the occurrence of abundant sulfate-reducing bacterialpopulations has substantially affected the industrial production. This study was conducted from the perspective of ecologicalsuppression by operating anaerobic ABR reactors and dosing ecological inhibitors in a continuous-flow experiment. The practicaloperating efficacy was investigated and associated dynamic bacterial population succession was analyzed. Results sh...
Autori: Bin-song Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26165

AbstractStudying the relationship between urban typical landscape functional types and vegetation communities will conduct toinformation on management measures, people’s activities etc. Moreover, this could attain an important role for the research ofother ecological phenomena where human activities are involved. According to the data collected from the said plots, the impactof typical landscape functional types of urban core areas on the plant species was analysed. The results show that indigen...
Autori: Yantun Song
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26169

AbstractWith the rapid development of the city, people feel increasingly great pressure. Community Parks are playing more significantroles in people’s daily life. Community Parks with the theme of leisure and recreation provide communication platforms forresidents and have enriched their outdoor activities. The parks not only ease people’s life and work pressure, but also improvecommunication among neighbours. An excellent Community Park not only needs to satisfy residents’ utility requirements,...
Autori: Wenting Wu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26176

AbstractAlong with the rapid economic development of China, the large amount of carbon dioxide (CO2) emission has become constrainton future sustainable development. The Chinese government has established a series of policies to come with the high CO2-emission resulting from economic development with the target to reduce its carbon intensity (CO2-emissions per unit of grossdomestic product (GDP)) by 40-45%, and to decrease the energy intensity (energy consumption per unit of GDP) by 20% by theye...
Autori: Feng Xu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26181

AbstractAdopting the theories and methods of emergy analysis, the annual average emergy input-output of the Lake Nansi wetlandecosystem is calculated. Further, the emergy analysis chart is drawn to evaluate the energy flow and the economic value of thelake. The structure and functions of the Lake Nansi wetland ecosystem are analyzed as a whole. The results showed that theamount of the input solar emergy (including sunlight, wind and rainfall) of the Lake Nansi is 1.11×1021 1021 solar emergyjoule...
Autori: Liang Chunling
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26183

AbstractThis study estimates the number of visitors to State Protected Wilderness Areas (SPWAs) in Chile by origin (national andforeign), using annual data from 1986 to 2011. Two linear regression models were used: one to estimate the number of Chileanvisitors and the other for foreign visitors. The model to predict Chilean visitors in 2013-2014 incorporates the GDP per capita inChile, the annual trend in the conditions of international economic crises, while the model to predict the number of f...
Autori: Jaime Pérez-Kallens
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26189

AbstractThough at a first sight the potential of tourism was advocated, without any doubt, as an routine tool for improving the welfare ofthe population, in recent years several works have appeared that criticize the universal validity of tourism as a development tool,whose premise is that the relationship is not automatic between the two dimensions, but instead a country must meet certaincharacteristics in order for this link to occur and, therefore, calls into question the solution implemented...
Autori: Juan Ignacio Pulido-Fernández
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26197

AbstractThis study presents a simple, synoptic and suitable for continuous monitoring model based on the fuzzy logic to monitor landdegradation after a forest fire in a Spanish Mediterranean coastal area. The model combined topography and vegetationinformation to assess land degradation status. Topography parameters, slope and aspect were derived from a digital elevationmodel (DEM). Evidences about the soil status were obtained by analyzing the vegetation cover with remote sensing images. TheNor...
Autori: Ignacio Melendez-Pastor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26206

AbstractExcess biomass produced in the degradation processes of organic pollutants is creating environmental challenges for wastewatertreatment plants. The A+OSA system, a modification of the anoxic / oxic (A/O) process via insertion of a sludge holding tankinto a sludge return line, has been demonstrated to be capable of achieving simultaneous nutrient removal and sludge reduction.Here we report the results of an investigation aimed at evaluating the impact of the sludge holding tank on the bio...
Autori: Li Jia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26207

AbstractThe reuse of a wastewater treatment system was investigated using intermittent media infiltration (IMI) to evaluate the fecalcoliform (FC) removal efficiency with natural zeolite containing clinoptilolite from the state of San Luis Potosí, Mexico and itszinc-modified form (Zeo-Zn). The municipal wastewater, which was from Saltillo, Coahuila, Mexico, was treated for FC analysisfor four months. The physicochemical properties of zeolite were analyzed, and their behavior as filter media for ...
Autori: Sasirot Khamkure
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26212

AbstractThe recrudescence and diversification of natural and anthropic hazards over the past decades are mainly attributed to an increasein the vulnerability of human communities. Understanding this vulnerability, as central predictive variable within the riskequation, proves to be a highly useful tool in land planning, namely in the development of various strategies. The current paperaims at proposing and integrating certain indicators into the methodology used in the evaluation of exposure to ...
Autori: Adrian Grozavu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26218

AbstractPresent study deals with a technology that reduces the cadmium(Cd) availability to the leafy vegetable Amaranthus caudatusfrom Cd contaminated soil (6 μg Cd g-1soil), amended with farmyard manure FYM, FYM+NPK and agricultural wastes (ricehusk; RH and saw dust; SD) at different doses (0.5 %, 2 %, 5 % and 10 %). Among all the doses 5 % was found to the best foreach amendment showing maximum reduction in phytoavailability of Cd hence better vegetable yield. At this dose the reductionin...
Autori: Anita Singh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26228

AbstractIn this work, a four factor three-level Box–Behnken factorial design based on response surface methodology (RSM) wasemployed to optimize the removal of phosphate from synthetic wastewater (mineral salts medium-MSM) by the bacterialconsortium (Bacillus sp. RS-1, Pseudomonas sp. YLW-7, Enterobacter sp. KLW-2). A mathematical model was then developedto show the effect of each medium composition and their interactions on phosphate removal. The effect of the lactoseconcentration (X1), pH (X2)...
Autori: Krishnaswamy Usharani
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26235

AbstractFluoride content in some available teas, dry leaves and tea infusions were determined, in order to check the influence of brewingtime on fluoride content in tea and to compare the percent extraction of fluoride releasing during tea infusion time. A fluoride ionselective electrode was used to determinate the fluoride content in tea samples (Hypericum perforatum, Tilia cordata andCamellia sinensis). Total fluoride contents of tea leaves were determined to be 91.1 - 162 mg/kg d.w., and 0.09...
Autori: Semaghiul Birghila
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26242

AbstractThe vortex flame concept of combustion has been well known to produce low levels of NOx. This feature qualifies it to be usedin industrial processes and in power generation to comply with the environmental regulations concerning nitrogen oxideemissions. An asymmetric vortex flame combustor has been recently proposed by the authors. The present article reports thelevels of NOx emissions of such combustor for the first time. An experimental platform designed and developed to examine theNOx...
Autori: Khalid M. Saqr
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26245

AbstractFor the purpose of coping with oil spills successfully, it is important to establish effective response and preparedness plans. Inprevious study, we proposed the use of Case-Based Reasoning (CBR) technology to develop environmental emergency responseand preparedness plans. In this paper, we present how to develop a CBR-Oil Spill Response and Preparedness System (CBROSRPS). In particular, the Frame method is employed to do case representation, the modified Heterogeneous Euclidean-Overlap ...
Autori: Zhenliang Liao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26247

AbstractA bench-scale anaerobic bioreactor for the anaerobic treatment of textile wastewater using anaerobic sludge was experimented.The Top and bottom of hybrid bioreactor were functioned with UAF (Up Flow Anaerobic Filter) and UASB (Up Flow AnaerobicSludge Blanket), respectively. The effect of organic loading rate (OLR) and hydraulic retention time (HRT) on treatment oforganic matters in the textile wastewater was investigated. The maximum removal of chemical oxygen demand (COD) and colorwas 9...
Autori: Reza Katal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26255

AbstractThe applications of biofilm treatment technologies for domestic wastewater are being increased in many parts of the world. Theaim of the study is to assess a compacted aerobic attached growth fix-film unit (termed Bio-cache) for treatment of small volumedomestic wastewater. The system consists of the miniature plastic packing matrix, which provides a large surface area of 300m2/m3, so as to maintain the high rate growth of viable organisms responsible for organic degradation. The study o...
Autori: Alireza Valipour
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26266

AbstractReliability model which can quantitatively calculate the probability of failure of storm sewer was developed in this study. Annualmaximum rainfall intensities of six South-Korean cities were used to determine the statistical distribution for reliability model.From the results of reliability analysis, it was found that statistical distribution for the annual maximum rainfall intensities of sixcities in Korea is well matched with Gumbel distribution. Rational equation was applied to determ...
Autori: Hyuk Jae Kwon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26270

AbstractThe aim of the present study was to investigate the mechanism of Cr(VI) bioaccumulation by livingand active Phanerochaete chrysosporium. Fungal growth was inhibited beyond 10 mg L-1 Cr(VI) concentration thereby reducing the chromium bioaccumulation capacity. The optimum pH was found to be 6 for the growth and bioaccumulation of Cr(VI) by P. chrysosporium. Bioaccumulation efficiency decreased from 81.47% to 23.82% when Cr(VI) concentration was increased from 10 to 40 mg L-1. A Fourier tra...
Autori: Kaustubha Mohanty, Somasundaram Murugavelh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26280

AbstractIn the present paper, support vector machines (SVMs) are used to develop a quantitative structure-activity relationships (QSAR) model for the reaction rate constants (-logkNO3) of 115 heterogeneous organic compounds, through reaction with nitrate radicals (NO3•) in the troposphere. Two quantum chemical descriptors used as the inputs for the SVM model were calculated with density functional theory (DFT), at the B3LYP level of theory with 6-31G(d) basis set. The best predictions were obtai...
Autori: Bing Yi, Jiyong Deng, Xinliang Yu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26284

AbstractThe objectives of this study were to investigate of cadmium and chromium adsorption from aqueous solutions by using orange (Citrus sinensis var Tampson) and sour orange (Citrus aurantium) mesocarp. The chemometric approach was applied for the optimization of removal percent of Cd2+ and Cr6+. To optimize Cd2+ and Cr6+ removal percent, the effect of four experimental parameters on removal percent was investigated by means of multivariate analysis. The considered factors were Cd2+ and Cr6+ ...
Autori: Maryam Bagheri Ardebilian, Mohammad Ali Zazouli, Pouneh Ebrahimi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26287

AbstractAerobic granulation is a novel biotechnique for the treatment of coloured wastewater containing toxic xenobiotics in sequencingbatch reactor (SBR). The aerobic granules were investigated as a potential biomaterial for biodegradation of p-nitrophenol. Theremoval efficiency of p-nitrophenol was 93 % after 65 days of operation at 8 hr hydraulic retention time (HRT). The aerobicgranules were cultivated at a p-nitrophenol loading rate of 0.9 kg m-3 day-1, with sodium acetate as co-substrate t...
Autori: Pijush Kanti Mondal, Rais Ahmad
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26302

AbstractThe effect of the number of surrounding droplets and distance between evaporating droplets on evaporation rate of the targetdroplet is studied experimentally in an evaporator which has been validated based on the d-square law. It can be found that theevaporation rate of the target droplet decreases with the increase of the number of surrounding droplets and the decrease of thedistance between evaporating droplets. The results analyzed experimentally and theoretically show that there is a...
Autori: Li Xiang-Rong, Liu Fu-Shui, Ma Yupo, Wang Xiang-Yuan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26304

AbstractSeed priming has been reported to be a simple technique for enhancing seedling establishment in environment and cropproduction under stressed condition. In this study, we investigated osmo and hydropriming effect in two salt stressed chickpeacultivars. This research monitors the changes in growth factors, proline content, lipid peroxidation and H2O2 scavenging enzymesactivities in osmo (mannitol 4%) and hydro (water) primed plantlets of two salt stressed chickpea cultivars (Arman and Biv...
Autori: Akbar Mostajeran, Fatemeh Khodabakhsh, Rayhaneh Amooaghaie
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26315

AbstractThis research introduces a new Robust Interval Type-2 Fuzzy Set Linear Programming (R-IT2FSLP) model to manage irrigationwater resources. This method improves upon previous interval fuzzy bound models by allowing uncertainties presented asmultiple fuzzy boundaries. It creates additional degrees of freedom and enable direct modeling of uncertainties within anoptimization framework. It more explicitly reflects the system’s uncertainties under the fuzzy membership function. The more ofR-IT2...
Autori: Guohe Huang, Lei Jin
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26324

AbstractIn this work, the effect of the addition of some nutrients on fungal growth and removal of Cr(III) were investigated. Theconsidered fungi, isolated from real tanning factory environment were Phanerochaete chrysosporium, Aspergillus niger and A.oryzae. Firstly, the optimal conditions for fungal growth were determined as a function of pH, contact time, temperature andagitation speed. Secondly, the effect of the addition of some nutrients on fungal growth was examined. Without the addition ...
Autori: Abdeltif Amrane, Mansur Zarrabi, Mohammad Noori Sepehr
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26337

AbstractA pilot scale Upflow Anaerobic Filter (UAF) treating tannery wastewaters was operated for 160 days. The UAF was fed with lowCOD/SO42- ratio (SO42- = 1810 mg L-1, CODtotal = 2530 mg L-1) for the investigation of sulphate and COD removal as a functionof substrates limitation and ammonia and sulphide inhibition. Sulphate-reducing bacteria (SRB) out-competed methanogenicbacteria due to the low influent COD/SO42- ratio, the high concentration of sulphide and the presence of inhibiting compoun...
Autori: Alberto Mannucci, Claudio Lubello, Giulio Munz, Gualtiero Mori
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26353

AbstractWireless sensor network (WSN) has been widely used in national defense, military and security, environmental monitoring andmany other fields. It’s of great significance to design WSN which consumes little energy but supports service quality flexibly andeffectively. To further improve the performance of WSN, this article, focusing on aspects of low energy consumption and longlife cycle of the WSN and taking energy limits and coverage requirements in WSN into account, attributes the covera...
Autori: Wenjuan Cheng, Yiming Tian, Yourui Huang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26359

AbstractUsing the provincial panel data of China during 1995-2009, this paper focused on the effects of carbon taxes on economy andcarbon emissions in China based on different scenarios. Our research makes the following conclusions: Carbon taxes will restraineconomy growth and curb carbon emissions, but the effects will continually decrease with the enhancement of carbon taxes.Increasing carbon taxes will increase output elasticities of capital and labour, but decrease output elasticity of energ...
Autori: Ru-yin Long, Shi-Chun Xu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26360

AbstractBased on the improved C-D production function model, the relationship of China’s energy consumption, economic growth andcarbon emissions are comprehensively studied in this paper through the panel data in China from1991 to 2009. The researchshows that energy consumption and economic growth have a long-term equilibrium and a one-way causality relationship fromenergy consumption to economic growth. In both elasticity coefficients and contributive rate, energy consumption plays the mostimpo...
Autori: Huifeng Pan, Jian-Min Wang, Li Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26370

AbstractThe adoption of Carbon tax is usually thought to be one kind of important economic measures to reduce carbon emissions. Onthe one hand, the adoption of carbon tax can reduce the use of fuels that contain high percentage of carbon, and promote thedevelopment and use of renewable energy. On the other hand, the measure will affect energy prices, supply and demand, andincome distribution, thus causing negative effects on economic growth. This paper discusses the design of the basic taxations...
Autori: Yan-bing Cai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26371

AbstractThe environmental pressure brought by foreign direct investment (FDI) to China has been an increasingly common topic. It is thecurrent and later policy tropism to protect environment all-sided and keep the environmental elements continual use in making useof FDI in China. Environmental effect of FDI is a "double blade sword". This paper first analyzes the environmental effects ofFDI and the terms of its positive effect, and then analyzes the negative environmental impacts of FDI in China...
Autori: Hong-Min Qu, Lu Yang, Yan-Bo Zhang, Ye Liu, Ze-Shen Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26372

AbstractThe energy and environmental regulations of thermal power plants became crucial issues in China due to the coal dependence ofelectricity generation. The regulation costs, which are distributed differently between the plants are evaluated based ondirectional distance functions approach using the input and pollution data of the main thermal power plants in 2008. The resultsof our analysis show that potential cost for complying with the regulations entailing coal consumption for power gener...
Autori: Jinyi Li, Wei Zhang, Xiaohua Xia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26376

AbstractIn this paper, the panel data model is built to research the dynamic evolution mechanism of the total factor energy efficiency(TFEE). Then by using the panel data of China from 1991 to 2009, this paper estimates China’s TFEE based on the input to theguide DEA model, and empirically researches on the dynamic evolution mechanism of the China’s TFEE by comparativelyanalyzing the contribution rate of every influencing factor to the growth rate of TFEE. The empirical research results show tha...
Autori: Chuan-Xu Wang, Jian-Min Wang, Li Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26380

AbstractWoodland covers about one third of Italy. No longer just a source of products for fuels and buildings, forests also have aprotective function against natural disasters like landslides and they also serve as recreational areas for people.Our primary goal was to define an overall method for assessing the possible uses of woodland areas to help those preparing forestplanning instruments for evaluating the productive, protective and recreational functions of the woodlands. We quantified, usi...
Autori: Alessandro Toccolini, Giulio Senes, Natalia Fumagalli, Paolo Ferrario
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26382

AbstractMost of the European countries have implemented large renewable energy systems that use wind energy, solar energy and waterenergy. In our country only water energy was used for many years. In the last period there is an obvious orientation towards theuse of all types of renewable energy systems, which are both efficient and environmental friendly. The objective of our paper isto design an instrument for the evaluation of the best suited renewable energy system for different areas and typ...
Autori: Monica Leba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26395

AbstractThe protected natural areas are becoming increasingly popular vacation destinations with both international and domestictravellers. Protected area may be an area of land and/or sea dedicated to the protection and maintenance of biological diversity,and of natural and associated cultural resources, and managed through legal or other means. It might have many differentpurposes. This means that biodiversity protection, though a critically important function is far from being the only purpos...
Autori: Lidija Petrić
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26413

AbstractAs the threat posed by global climate change becomes more acute, action must be taken to mitigate carbon emission. Carbonfootprint, as a widely used term and concept, is increasingly being recognized as a valuable indicator in the field of GHG andcarbon emissions management. However, few attempts have been made to investigate precise relationship between carbonfootprint and influential factors. In this paper, STIRPAT model was employed to reveal the dynamic relationships betweencarbon fo...
Autori: Xiangmei Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26414

AbstractThe industrial development, the demographic growth and the limitation of the natural regions have determined a continuousdegradation of the water quality due to high concentrations and complexity of pollutants from the wastewater. The centralizedand decentralized treatment systems apply treatment procedures and techniques which can be complementary in solving theenvironmental pollution problems due to wastewater. In the present paper a three-dimensional mathematical model waselaborated b...
Autori: Narcis Barsan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26422

AbstractThe study aimed the diversification of fodder yeast assortments with viable economic effects while reducing the environmentpollution by capitalization of wastewaters with high monosaccharides content from pulp and paper industry and residual wheyfrom milk industry. Using the Response Surface Methodology the fabrication recipe has been optimized according to anexperimental program based on a mathematical model with biomass, protein and residual sugar as response functions. Theculture medi...
Autori: Livia Manea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26429

AbstractThe aim of our investigations was to assess the potential ecotoxicological effects induced by complex chemical mixtures ofanaerobically digested sewage sludge. The sensitivity of monocotyledonae cereal (Triticum aestivum L.) test plant to varioussanitization treatments of anaerobic stabilized sewage sludge was evaluated. Several biometrical and biochemical responseindicators were selected as endpoint in this ecotoxicological tests. Thus, the ecotoxicity of sewage sludge was evaluated thr...
Autori: Dumitra Raducanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26437

AbstractThe objective of the study is to set up and calibrate a model using the soil and water assessment tool (SWAT) in order to simulatethe water flow in the Buyo Lake located in west of Cote d’Ivoire and to test and evaluate the usefulness and the performance ofthe model. In this study, we had used the ArcSWAT graphical user interface to manipulate and execute the major functions ofSWAT model from ArcGIS tool. Hydrological modeling of Buyo Lake Basin was carried out with the ArcSWAT interface...
Autori: Tanoh Jean-Jacques Koua
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26442

AbstractIn the present work, the kinetics of amaranth dye biosorption onto the roots, stems, leaves and the whole plant of water hyacinth(Eichhornia crassipes) were studied for differential evaluation of the plant’s biosorptive potential to remove the toxic dye fromaqueous solutions. E. crassipes´ leaves showed the highest level of amaranth dye biosorption (43.1 mg/g), followed by the entireplant (31.18 mg/g), the roots (28.51 mg/g), and finally by the stems (23.97 mg/g). The same differential t...
Autori: Imelda Guerrero-Coronilla
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26463

AbstractThe main purpose of the present work was to evaluate the potential of plum (P. domestica L.) tree bark (PDB) to remove Cr(VI)and total chromium from aqueous solutions in batch systems. Experimental data showed that the Cr(VI) and total chromiumremoval capacity was dependent on operating variables such as PDB particle size, PDB pretreatment, solution pH, initial Cr(VI)concentration, and contact time. The mechanism of Cr(VI) removal by PDB implies two simultaneous processes: 1) the reducti...
Autori: Perla Vianey Lopez-Nuńez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26464

AbstractCarbon monoxide (CO) is a gas obtained both from natural sources (bush fires, volcanic emissions and electric discharges) andby anthropogenic processes (incomplete combustion of fossil fuels). Together with particulate matter, nitrogen oxides andhydrocarbons, it is part of the air pollutants associated with the transport sector, which have a negative impact on human health,animals and vegetation. In this paper the authors propose a methodology for assessing CO emissions from road traffic...
Autori: Gabriela Mitran
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26466

AbstractWastewater treatment processes with activated sludge are described in the specialized literature by complex models withnonlinear parameterization, such as for example Activated Sludge Model ASM1, ASM2 or ASM3. Under these conditions, thedesign of control structures using the state space representation is very difficult. Suitable techniques to approach the control ofthese processes are using control structures based on an input-output model or using control structures obtained without eve...
Autori: Daniela Carp
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26470

AbstractA series of experiments were performed to quantify the adsorption of Cesium on Silica impregnated withtrihexyl(tetradecyl)phosphonium chloride (Cyphos IL-101). Non-radioactive cesium solution was used as a surrogate of theradioactive 137Cs. The obtained impregnated Silica with the studied ionic liquid was characterized through scanning electronmicroscopy, energy dispersive X-ray analysis and Fourier transform infrared spectroscopy in order to put in evidence that theimpregnation with the...
Autori: Adina Negrea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26473

AbstractMunicipal solid waste management is a matter experienced by the entire world, mostly encountered in urban areas as a result ofpopulation growth and increased income per capita. This issue always posed threats to environmental quality and human health,and continues to be one of the major environmental problems people continues to face. In the last few decades, the systemsanalysis techniques have been applied to manage the municipal solid waste (MSW) streams through a range of integrativem...
Autori: Cristina Ghinea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26481

AbstractEnhanced nitrogen inputs to both terrestrial and aquatic ecosystems affects biodiversity at all its levels. Grasslands provide acomplex range of functions, due to their wide representation throughout terrestrial ecosystems. Numerous studies demonstratesoil acidification, eutrophication and species richness reduction as a result of elevated reactive nitrogen availability. The presentstudy aims to assess soil nitrogen stocks and transformations for two Romanian grasslands during November 2...
Autori: Carmen Postolache
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26497

AbstractA pot experiment was conducted to evaluate the growth and metal accumulation in water spinach (Ipomoea aquatica) establishedon a 30-year old active firing range soil amended with chicken manure (CM) and coconut tree sawdust (CTS) at application ratesof 0%, 1% and 3% (w/w). Both amendments increased biomass yield and reduced plant metal uptake. The bioconcentrationfactor (BCF) and transportation factor (TF) values of the metals were in the order of Zn > Cu > Pb. The ammonium acetate...
Autori: Azlan Kamari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26499

AbstractThe objective of this study is air pollutants discharging on active centers, depending on its relative electric permittivity, effectivein thermal, chemical and mechanical hydrogen relaxation enabling the fastest velocity of pollutant heat transport. The diagnosticsof relative electric permittivity is carried out on the basis of the daily pollutants mass concentration monitoring results, in sixthday period in the various seasons and locations in Romania and Serbia. The monitoring results ...
Autori: Milan Pavlović
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26507

AbstractMost studies exploring the contribution of the mycorrhizal symbiosis to plant metal tolerance focus on plant-metal uptake anddisregard metal effects on the symbiotic fungi. We examined the tolerance of the model arbuscular mycorrhizal fungusRhizophagus irregularisto Al and Pb in vitro cultures with transformed carrot (Daucus carota L.) roots that exclude theinterference of other microbiota. We studied the development of roots and external mycelium of R. irregularis in monoxenic andaxenic...
Autori: Mayra E. Gavito
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26516

AbstractThis paper presents the effects of regularization and embankment of the Olt River and drainage of its floodplain on thegroundwater table from meadows and on the erosion base levels of tributaries within Ciuc Depression. The hydraulic worksreduced the wetlands and had important impact on the aquatic flora and fauna of the river and its floodplain. Measurements andobservations (before 1985 and after implementation of hydraulic works in 2008) undertaken upon the river, upon the drainagesyst...
Autori: Iosif Bartha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26519

AbstractThe primary objectives of this study were to identify the ecotypes of the ‘longicaulis’ giant reed (Arundo donax L.) that arewinter-frost and cold tolerant in temperate climates on marginal lands and to perform biotechnological research on theseecotypes. We searched for large ‘longicaulis’ giant reed ecotypes, which wintered successfully in spite of the 2012/2013 winterfrosts and sprouted from stem nodes in the spring of 2013 in three locations of the Balaton basin. Starting in vitro cul...
Autori: Gabriella Antal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26527

AbstractIn this paper, we develop a rigorous theoretical framework and a practical implementation for the evaluation of the energy- andcost-saving potential of buildings. The goal is to promote sustainability in the context of building energetics by achieving themost efficient, optimal exploitation of the financial resources available for refurbishments. The practical realization of thisconcept requires the evaluation of the optimal refurbishment cost that maximizes the net energetic or financia...
Autori: Árpád Csík
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26535

AbstractAmong the various environmental problems arising today, special attention must be paid to the issues related to energy; inparticular one of the most important tasks to address environmental issues is the decreasing of the energy consumption ofbuildings. As a result, much attention has been given recently to research projects aiming to analyze the technological,economical and environmental features of energy efficient buildings. This paper examines such buildings in four regions ofEurope ...
Autori: Gábor Kozma
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26543

AbstractThe thermal and water insulation of buildings is extremely important. Currently, the most applied insulation materials in thebuilding sector are plastic foams and fibrous materials. Different types of polystyrene materials are used as water and thermalinsulators, e.g., expanded polystyrene (EPS) and extruded polystyrene (XPS). The differences between the different polystyrenematerials is found in their manufacturing processes and thus in their microstructure. Our research focuses on the ...
Autori: Ákos Lakatos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26546

AbstractSocial and economic development can cause land cover changes that significantly affect ecosystem services and functions. Thisstudy investigated the temporal variation in ecosystem service values in response to land cover changes caused mainly by humanactivities in Harbin City, one of the fastest growing metropolitan areas in northeast China. The aim was to provide guidance forregional sustainable development. An evaluation method for ecosystem service values based on land cover change wa...
Autori: Zi Tang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26556

AbstractThis paper presents the experimental results obtained during testing in an electromagnetic field with non-ionizing radiations fromlow-intensity microwaves acting on a group of substances consisting of: double distilled water, neutralized to pH = 7; drinkingwater with pH = 7.3; slightly acidic aqueous solutions obtained by diluting the acetic acid at concentrations of 2.25‰, 4.5‰ and9‰ in double distilled water, for pH = 6.8, 6.7 and 6.5, respectively. The exposure of the samples was perf...
Autori: Gheorghe Morariu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26562

AbstractPresent study was envisaged to study chelators-metal interaction in phytoaccumulation of metals as a bioremediation technologyto decontaminate metal pollution and adsorption of metals on soil. Lactuca sativa was used as model plant for phytoaccumulationto identify uptake of Cadmium (Cd) and Lead (Pb) and their subsequent accumulation in edible tissue of plant. Cadmium andlead were two selected metals for phytoaccumulation and copper was also studied for adsorption experiment. Green house...
Autori: Audil Rashid
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26568

Abstract The effects of cadmium (Cd), Zinc (Zn), and Cd–Zn on growth and their accumulation in the Matthiola flavida shoots were investigated. A factorial experiment with two factors (Cd and Zn) concerning four concentrations of Cd (0, 5, 10 and 20 mg L-1) and four Zn concentrations (0, 10, 20 and 40 mg L-1) were carried out. The shoot and root biomass of M. flavida growing in Cd- Zn medium decreased significantly (p<0.01) compared to the control. Growing in the presence of 20 mg L-...
Autori: Naser Jamali
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26587

Abstract The aim of this paper is the adaptation of an Ecodesign methodology for product publishing SMEs that have implemented Lean Management. To obtain verification of this methodology, an eco-redesign case study of a product has been carried out from a furniture publishing SME which applies lean management to its entire production chain. Some proposed improvements resulting from this case study were: Design for dismantling, Multifunction, Dematerialisation, Increasing the material of rene...
Autori: Sara González-García
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26592

Abstract The present study was conducted to determine the heavy metals (Fe, Mn, Zn, Cu, Pb, and Cd) and essential oils content in the berries of Juniperus phoenicea L. grown in two different geographic origins; Dana conservation and Al-Hisha forest in Jordan. Atomic absorption and Hydrodistillation methods were used to determine heavy metals concentrations and oil contents in plant samples of J. phoenicea L., respectively. Results showed that, the oil yielded from J. phoenicea L. berries in ...
Autori: Mohammad Sanad Abu-darwish
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26595

Abstract Due to its very low moisture content, the solid waste from the two-phase olive oil extraction process (dry olive mill residue, DOR) can be easily stored and used as a readily available basal liquid culture medium via its reconstitution with water. Five white-rot fungi (namely Phanerochaete chrysosporium NRRL 6361, Lentinus tigrinus CBS 577.79, Pleurotus pulmonarius CBS 664.97, Phlebia radiata DABAC 9 and Botryosphaeria rhodina DABAC P82), previously selected in a screening program, ...
Autori: Alessandro D’Annibale
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26598

Abstract The objectives of this paper address the identification and statistical analysis of the laws underlying the variability of the magnitude of the damages to torrent control structures induced by four of the most well-known events affecting their stability, resistance and durability. The research set consists of 100 torrent control structures that have continuously functioned for almost three decades in a managed torrential watershed in the forested mountainous area of Romania. In the ...
Autori: Ioan Clinciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26619

Abstract Copper nanoparticles were successfully synthesized on polyether-functionalized mesoporous silica to investigate the effect of metal loading (10, 25 and 35 wt. % Cu) on their structural and catalytic properties. The oxide forms of these nanocomposite materials were thoroughly characterized by nitrogen physisorption, SAXS, WAXS, TEM, EDXS, and TPR, whereas the metallic forms were analysed by N2O chemisorption. The results indicated that the mesostructured SBA-15-like hybrids favoured ...
Autori: Constantin Rudolf
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26653

Abstract This paper presents the results obtained using the prehydrolysis treatments of rapeseed stalks depending on regime and the catalyst. The vegetal materials were subjected under different temperature conditions and then characterized for the yield reducing substances. The differences between samples have been established by using FTIR and depend on the successive hydrolytic treatments of dynamic and static regime in the presence of various catalysts. The experimental data show that th...
Autori: Corina Măluţan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26654

Abstract The oxygen transfer into the fermentation broths could be improved in presence of oxygen-vectors, without intensification of mixing or aeration. The experimental results for simulated, P. shermanii and S. cerevisiae broths indicated the significant increase of kLa, by adding n-dodecane, but the magnitude of this effect depends especially on the cells affinity for hydrocarbon droplets. Therefore, due to the higher affinity of yeasts cells for hydrocarbon droplets during their entire ...
Autori: Anca Irina Galaction
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26657

Abstract The class of xanthene dyes has a complex chemical structure, which showed to be toxic for mixed culture of microorganisms (i.e. anaerobic granular sludge). Because of the unwanted effects of Erythrosin B (Ery B) on environmental components and some food confirmed previously, the dye was chosen in this study to evaluate its ecotoxicity. Also, the Ery B photocatalytic degradation products were assessed in terms of their ecotoxicity. Three-days of seed germination and root growth test...
Autori: Laura Carmen Apostol
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26660

Abstract Biochar derived from agricultural biomass waste is increasingly recognized as multifunctional material for various applications according its characteristics. It is therefore essential to investigate biochar properties before large-scale application. In this study, rice straw-derived biochars produced at different temperature (550, 650, 750 oC). The resulting biochars were subjected to liquidphase oxidation by different agents including KOH, HNO3, H2SO4, H2O2 and KMnO4 to obtain bio...
Autori: Sobhy M. Yakout
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26661

Abstract The present work investigates the performance of Cristal-RightTM CR100 zeolite based on the equilibrium and thermodynamics water softening process. The commercial zeolite was characterized by scanning electron microscopy combined with energy dispersive X-ray spectroscopy and FT-IR spectroscopy. The equilibrium performances of zeolite were evaluated by the sorption capacity of calcium cations from calcium chloride solutions varying the calcium concentrations corresponding to moderate...
Autori: Liliana Lazăr
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26670

Abstract The transformation of lentic ecosystems in other types of ecosystems (plain, forest) is a part of normal process of ecological succession that occurs slowly, at geological scale. The filling of cuvette with eroded material transported by precipitations, air masses or detritus produced in situ, start from the moment when the body of water lakes is formed and has different rates depending on many factors: geographical location, geological substrate type, types of existing uses in the ...
Autori: Ofelia Axinte
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26672

Abstract The present research reports the synthesis of poly-N-isopropylacrylamide / mesoporous carbon composites, prepared by radical polymerization of N-isopropylacrylamide inside mesoporous carbon pores functionalized with carboxylic groups. The deposition of poly-N-isopropylacrylamide on mesoporous carbon was confirmed by FT-IR spectroscopy, TEM, N2-sorption measurements. The mesoporous carbon material was found to adsorb vitamin B2 from aqueous solution at room temperature. The obtained ...
Autori: Maria Ignat
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26679

Abstract β-galactosidase from Aspergillus oryzae was strongly immobilized on magnetic particles functionalized with amino groups. By simple incubation without any activating agents, electrostatic interactions between amino groups and enzymes allowed obtaining a strong linkage. The immobilization efficiency was studied with the quantification of amino groups of the particles and of immobilized β-galactosidase. Kinetic parameters, especially the maximal velocity Vmax and the affinity...
Autori: Kalim Belhacene
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26682

Abstract The degradation and adsorption behavior of dibutyl phthalate (DBP) in methanogenic phase refuse was investigated through laboratory microcosm experiments. The results showed that the half-life of DBP in the sterilized refuse was 5.9 times higher than in unsterilized samples, but that it decreased by 35.8% when dominant bacterial strains were added. Different concentrations of DBP did not have obvious effects on its degradation. The half-lives of DBP were decreased by 53.0%, 37.2% an...
Autori: Chengran Fang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26690

Abstract In the process of chitin extraction, shrimp shell powder was treated by Lactobacillus plantarum culture. The efficiency of microbial demineralization (DM) under aerobic and anaerobic conditions was investigated. The shrimp shell powder was incubated at 30 °C for 6 days with L. plantarum. In order to prepare microbial culture, inoculums size was 5% for culture inoculation. Date syrup with total reduce sugar concentration of 30 g.L-1 was used. The value of pH in anaerobic conditio...
Autori: Marjan Khorrami
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26692

Abstract In many coastal areas strong currents may occur from tidal effects, rivers discharges and high waves breaking due to abrupt changes in local topography. The modification of the wave fields by currents and vice versa need to be predicted by reliable nonlinear numerical models, when wave and current coexist along and around the approach tracks of the ports and harbors, or in the areas of ongoing offshore and coastal developments, or in areas subjected to intense navigation. Various wa...
Autori: Angela Ivan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26695

Abstract In the present work, the removal of cadmium ions from aqueous solution using an agricultural waste as biosorbent, namely trunk palm fibers was investigated. The adsorption equilibrium and kinetics for this system were studied. Four adsorption models were applied to understand the nature of the adsorption process. Freundlich adsorption isotherm was found to best fit the experimental data. The maximum adsorption capacity was found to be 23.8 mg/g. The adsorption process was found to b...
Autori: Hosam Altaher
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26699

Abstract This paper proposes an expert system based on Artificial Neural Networks (ANNs) to model road traffic noise. Feed-Forward Neural Networks (FFNNs) that are trained with the Levenberg-Marquardt back-propagation algorithm were used. Models were evaluated using mean squared error (MSE) and coefficient of determination (R2) as statistical performance parameters. In traffic noise modelling, the noise level at a receptor position due to the source of traffic emission is modelled as a funct...
Autori: Leila Khouban
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26700

Abstract The removal efficiency of algal biomass Chlamydomonas reinhardtii for Pb and Cu metal ions was evaluated in single and binary metal systems. Biosorption experiments were performed in solutions containing 0.2 g L-1 of algal biomass at 30oC and pH 6. Initial metal ion concentrations ranged from 10-7 M to 10-6 M. Thermal analysis of the biosorbent indicated that algal cells are composed of groups containing C, H, N, and S. The presence of ionisable functional groups responsible for bio...
Autori: Roula Flouty
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26709

Abstract Autism spectrum disorders (ASD) are a heterogeneous group of neurodevelopmental disorders that affect an individual’s ability to communicate and socialize, often associated with repetitive movements or behaviors. Frequently patients associate intellectual disability or digestive problems. Autism is more common in males and affects 1 in 88 children in USA. The mechanism that leads to ASD is very complex, involving genetic, epigenetic, immune and environmental factors that could...
Autori: Cristina Rusu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26712

Abstract Currently, conventional energy sources i.e. fossil fuels represent the main segment as regards electricity generation. Thus, their contribution to global CO2 emissions is considerable. This study considers carbon capture and storage (CCS) as a promising solution for the environmental problems we are now facing. Based on previous research, post-combustion capture (PCC) has been recognized as being the more appropriate technology for CO2 capturing from the existing power plants. The m...
Autori: Ales Hribernik
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26714

Abstract The juglone (5-hydroxy-1,4-naphthalenedione) can be found in the leaves and fruits of the black walnut (Juglans nigra L.). This substance has an inhibitory effect on the growth of the vegetal species, phenomenon which is named allelopathy. The inhibitory effect of the 50-100% concentration of this water extract, prepared from the black walnut fruits, on the seeds germination, plantlets growth and peroxidasic activity – registered in the seedlings roots – was poor, compar...
Autori: Dorina Cachiţă-Cosma
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26730

Abstract Today, a new generation of software applications can be developed, as IT services developed by software providers can be integrated by solution developers in complex control and monitoring Smart Building Management solutions. This paper introduces the concept of Virtual Smart Building Service Enterprise (SBSE) as a novel perspective to develop an innovated services ecosystem for smart buildings. The Virtual SBSE allows different stakeholder categories to interact in order to develop...
Autori: Monica Drăgoicea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26739

Abstract In Hungary, 0.5 million m3 of thermal water is exploited every day for diverse purposes. After utilization, this enormous amount of thermal water becomes sewage water with a high concentration of salts, heavy metals, ammonia, nitrate, an unfavorable ion composition and high temperature. A common treatment is to dispose of waste water into a surface recipient through uninsulated channels surrounded by arable land. By infiltration, sewage water can cause potential salinization/sodific...
Autori: Andrea Farsang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26742

Abstract Chitosan and keratin were tested as low cost biosorbents to remove phenol from water solutions at variable temperature (20- 50°C), initial phenol concentration (10-90 mg L-1) and pH (5.0-10.0), and fixed biosorbent dosage (10 g L-1). The pseudo-second order kinetic model exhibited the best fit to the experimental data and allowed estimating theoretical values of sorption capacity of 4.51 mg g-1 with keratin and 2.87 mg g-1 with chitosan. Equilibrium isotherms, described at best ...
Autori: Attilio Converti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26743

Abstract An experimental study of mixing in autoclave vessel equipped with an anchor impeller was performed on the sludge proceeding from the treatment of mixed municipal and industrial wastewater. This unit operation is part of a process for the recovery of sludge. The mathematical modelling of the mixing was done having in view the scaling-up of this process. The mathematical model allows the calculation of the mixing power N as a function of the impeller diameter d, the vessel diameter D,...
Autori: Ancaelena Eliza Sterpu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26744

Abstract Along with nowadays growth of urban areas and population, it is more and more important to have better water resources management, especially regarding drinking water supply. Maintaining a good state of a water distribution network poses challenges that are addressed by research community. Two of the main challenges in management of water distribution systems are the reduction of energy consumption due to the high pumping requirements in some systems and/or reduction of water losses...
Autori: Mario Castro Gama
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26747

Abstract The interaction between groundwater systems and urban environments has become an important challenge that fast developing modern cities must face. Contributing factors are, but not limited to, the continuous horizontal and vertical expansion of cities, population growth, climate change, water scarcity and water quality degradation. The present paper provides an overview on several aspects related to the interaction between aquifer systems and urban infrastructures. A review of urban...
Autori: Mohamed Amine Boukhemacha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26748

Abstract Extensive use of plastics leads to the increase of non biodegradable wastes that have to be recycled due to both dramatically decrease of natural resources to producing them and to their increasing need as well as due to environmental issues. Most of goods made by materials based on wastes have to be commonly used by people. Antibacterial character of those is necessary to avoid epidemics. This paper deals with determination of antimicrobial character of materials based on polymeric...
Autori: Florica Silvia Cristina Patachia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26751

Abstract In the context of biogas sustainability assessment, a promising way to reach greenhouse gases (GHG) reduction and fossil energy savings is the anaerobic digestion (AD) of both animal manure and energy crops. Nowadays, more than 1,100 AD plants are working in Italy, mostly located in Northern Regions. To those plants with an electrical power lower than 1 MW, strong public incentives were given, therefore, several of them have been put into operation; this entailed increasing cereal ...
Autori: Jacopo Bacenetti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26771

Abstract Thermophilic anaerobic digestion is a suitable technology to treat agricultural waste because of its higher biogas production, hygienisation effect and solids removal efficiency. Although these benefits, poor effluent quality and instability are encountered in some cases. The anaerobic co-digestion of winery waste and waste activated sludge at 55°C, operating at 23 days HRT and with an organic loading rate of 3.2 kg COD/m3d, was characterized by accumulation of volatile fatty ac...
Autori: Cinzia Da Ros
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26775

Abstract The recovery of raw materials from waste represents a sustainable growth opportunity for those countries with limited mineral resources availability. A case study for an integrated approach to recover raw materials from spent fluorescent lamps is presented, with the aim of improving the current treatments which are only able to recover the glass fraction. In particular a hydrometallurgical process was developed to obtain valuable metals such antimony, copper, and rare earths (yttriu...
Autori: Roberta De Carolis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26782

Abstract Hydrolysates of Arundo donax, a crop offering high productivity in contaminated or salinized soils with no inputs of irrigation and agrochemicals, were used in a discontinuous fermenter to grow the oleaginous yeast Lipomyces starkey, to obtain microbial oils potentially useful for the production of 2nd-generation biodiesel. A mixture of fermentable sugars was obtained by steam-explosion and subsequent enzymatic hydrolysis of the lignocellulosic materials. The concentration of Ni2+ ...
Autori: Domenico Pirozzi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26789

Abstract Solid digestate (SD) represents an environmental problem due to the continuous increase of biogas production. In the present study four white-rot fungal strains were screened for their ability to grow on two different SD samples, obtained from industrial biogas plants, using wheat straw (WS) as a control medium. Results show that i) the feedstock used in the biogas plant influences the time required for the colonization of the corresponding SD and ii) different fungal strains have d...
Autori: Guglielmo Santi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26792

Abstract This study was aimed to stimulate laccase production by Trametes pubescens MUT 2400 by using a tomato-based medium. Two sequential 2x2 factorial designs were used to determine the effect of carbon (C) and nitrogen (N) source concentration on laccase activity and biomass concentration; copper was used as the sole inducer (0.75 mM). Analysis of the first factorial design showed that N had a strong positive effect on the maximum laccase activity, which occurred at day 12 of cultivation...
Autori: Federica Spina
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26795

Abstract To make sustainability transitions happen, it is crucial not only to have strategic planning processes committed by the top management, but also to encourage community engagement, approaching and promoting a bottom-up process. In the specific case of a University Campus, that means the involvement of the students not only as consumers, but with a leading role in the sustainability process. DICAM department of University of Bologna has recently started the implementation of some prac...
Autori: Sara Rizzo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26798

Abstract The wide spread traffic congestion witnessed in urban transportation network, especially during rush hours, aggravates vehicle exhaust emissions. Previous studies reveal that congestion not only slows down the traffic flow but also significantly increases emissions. This highlights the need of accounting for congestion-related emissions in transportation planning. In this paper, congestion-related emission is incorporated into a transit bus scheduling problem by a nonlinear programm...
Autori: Yan Chen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26806

Abstract The feasibility of humidification-dehumidification utilizing waste heat from exhaust gas was investigated. The exhaust gas below 100°C was used as the heat resource and to evaporate the salt water. The effect of operation conditions on the fresh water productivity and thermal efficiency was studied, including the salt water flow rate, exhaust gas flow rate and temperature. The performance of this process was discussed from the view of temperature field, and the temperature field...
Autori: Huaigang Cheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26812

Abstract Large and frequent floods of the floodplain have caused huge loss to local residents in the lower reaches of the Yellow River. Since 1949, the population affected by the flood in the Yellow River has been about 8.87 million, and the submerged cultivated land area has been about 25.6 million acres. In order to provide the basis for flood control and disaster mitigation, it is very important to build a loss assessment model to evaluate flood damage. In this study, the relationship fun...
Autori: Xianqi Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26816

Abstract Water Distribution Networks (WDN) are large-scale systems whose management is a complex task, with increasing environmental and socio-economic implications worldwide, and with a renewed considerable attention by all stakeholders: local authorities, regulators, environmental groups and the scientific community. WDM managers need to reliably estimate the water demand in the short-term (typically 1 day ahead), in order to operate their reservoirs and treatment plants appropriately to ...
Autori: Antonio Candelieri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26830

Abstract The traditional industrial parks (TIPs) in China has been rapidly developed in the past 30 years, which have contributed to stable and continuing GDP growth, but also caused severe pollution. In order to solve the conflict between local economic development, environmental pollution and resource shortage, the TIPs in China should be transformed to eco-industrial parks (EIPs). However, the eco-transformation of China's TIPs is still at an exploratory stage. So, the paper studies e...
Autori: Jiang Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26855

Abstract On the basis of a generalized irreversible Carnot heat engine (GICHE) model with the losses of heat resistance, heat leakage and internal irreversibility, the local stability of the heat engine at the maximum ecological function (MEF) is studied with Newton’s heat transfer law between working fluid and heat reservoirs. It is derived that a general expression of relaxation time described as stability of the system refers to heat capacity C, overall heat transfer surface area F,...
Autori: Lingen Chen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26859

Abstract Energy costs not included in consumer utility invoices include human health problems triggered by air pollution from burning fossil fuels, and environmental degradation caused by global warming, acid rain, and water pollution. Such costs, peripheral to energy pricing, are called externalities because electricity producers and users do not pay for them directly. Society as a whole must pay. This pricing system masks the true costs of fossil-based electricity generation plants, result...
Autori: Hasan Karimzadegan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26862

Abstract This study investigated the use of tea waste to decolorize refractory dyestuff from textile wastewater. The influence of the solution pH and the contacting time were examined for various adsorbents, namely green tea-leaf powder (GTP), black tea-leaf powder (BTP), and powdered activated carbon (PAC). Results from batch experiments revealed that the reduction in true color (ADMI) increases with decreasing pH. The ADMI reduced from 1106 to 150 with 0.8 g/L of GTP at pH 2. The results a...
Autori: Chih-Huang Weng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26863

Abstract Superintensive growth of fish in a controlled environment involves taking a series of measures to ensure the oxygen necessary to provide optimal living conditions for stocks. Considering the fact that oxygen has a relatively low solubility in water, the photosynthesis in basins does not occur and the rate of incoming water may be low, it is imperative to supplement the water with oxygen. The paper presents theoretical researches on mathematical modelling and numerical simulation of ...
Autori: Vasilica Ştefan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26871

Abstract The adsorption of phosphorus (P) on sediment plays a significant role in phosphorus transport in aquatic systems. This research examined the effect of the main components of sediments (including iron (Fe), manganese (Mn) oxides and organic matter (OM)) on P adsorption and to evaluate their relative contribution with different sediment particle sizes. The sediments were separated into four particle-size fractions: 0-30 μm, 30-62 μm, 62-90 μm, and 90-125 μm, and then selec...
Autori: Yang Xiao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26873

Abstract As a result of the stakeholders’ growing pressure and global environmental challenges, many corporations across the world have to integrate environmental issues into their strategic decision-making system and operations function. The objective of this paper is to identify to what extent the activities regarding the environmental issues are successfully integrated into general and functional strategies of a multinational company from production field. We have analyzed these as...
Autori: Maria Mortan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26883

Abstract The current industrial trend is toward the development of sustainable technologies, and environmentally-friendly chemicals that might be used to enhance the drilling activities. This is due to the fact that petroleum industry is regarded as one of the hazardous and risky industries. Unfortunately, the majority of the toxic materials that are used in the formulation of drilling mud are employed to improve the quality and functions of drilling fluid. Oil based muds (OBMs) from hydroca...
Autori: M. Enamul Hossain
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26907

Abstract The distillery wastewaters lead to multiple environmental concerns due to release in large volume of pollutants in water-bodies. In the present study, microbes tolerant to 10-50%, v/v of distillery spent wash (DSW) and decolorization capacity were explored for decontamination. Total 32 microbes from various eco-habitats and depositary were examined to degrade DSW, initially at 10% and successively to 25 and 50%. Of these, 3 thermotolerant Pichia sp. viz. Y4, Y16 and D1C and an isola...
Autori: Bhagyashri Dandi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26911

Abstract The present study was designed to determine the sound effects of ultrasonic treatment and the biologically mediated extraction of uranium from low grade black shale. Low grade uranium was subjected to fungal treatments assisted by sonication by conventional methods. In situ fungal leaching of black shale with different fungal strains in the presence of molasses as growth substrate resulted in highest leaching yield of uranium by Phoma tropica (57.73%) compared to Penicillium chrysog...
Autori: Fozia Anjum
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26919

Abstract The paper aims at supporting and catalysing discussions (and possible options) on how the widely common waste management concept could be efficiently transformed to a level where phasing out residual waste becomes technically feasible. As such, this paper presents thoughts on the (possible) future meaning of term “waste”, but it also addresses the important relationship between the terms “waste” and “level of country development”. Although this re...
Autori: Andjelka Mihajlov
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26922

Moving bed biofilm reactor (MBBR) technique is a useful technology for the treatment of mature landfill leachate. The reactor start-up and acclimation processes illustrated that many factors, such as biomass, C/N ratio, and influent volumetric loading rates, could affect the ammonium-nitrogen (NH4+–N) and COD removal. The factorial experiments were carried out to determine the optimal reactor operational conditions, and the results demonstrated that when DO 2-4 mg/L, pH 7.5, and hydraul...
Autori: Wei Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26932

In this paper, the classical adiabatic model was chosen. The assumption of perfect gas working fluid was replaced by that of a real gas working fluid. This last assumption was defined by the van der Waals state equation. A Gamma type Stirling engine functioning with a maximum filling pressure of 10 bars was used to carry out experiments. Both theoretical models: the Perfect Gas Adiabatic Model (PGAM) and the Real Gas Adiabatic Model (RGAM) were applied to the Gamma Stirling engine. The influ...
Autori: Ramla Gheith
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26937

Various plants were investigated here as bioindicators for control of the environment. Grass, moss and leaves of maple, birch and oak from different locations, i.e., mining, chemical industrial sites and open green area in a small industrial town in the southwestern Poland (Zloty Stok) were examined. Concentrations of As, Ba, Ca, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Ni, Pb, Se, Sr, Ti, V and Zn were measured by the ICP-OES and CVG-ICP-OES techniques. Infrared spectroscopy (FT-IR) was used to inves...
Autori: Lukasz Zarebski
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26951

Environmental persistence of endocrine disrupting estrogen chemicals (EDC) subsequent to endocrine function even at nanogram concentration in environmental matrices has garnered significant global attention due to their possible disruptive effects in an intact organism, or its progeny. An attempt was made in present study to investigate the occurrence of two estrogens viz. natural (estriol, E3) and synthetic (17α-ethynylestradiol, EE2) in the surface waster bodies of Hyderabad, India. A...
Autori: A. Kiran Kumar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26953

Nautical tourism is a phenomenon that in the last three decades has recorded one of the highest development rates known in the European and Croatian economies. Economic forecasters for tourism development agree that nautical tourism is in its early stages of development and that increasing results are to be expected. From a scientific perspective, however, nautical tourism development is still not sufficiently represented in the science of tourism. In Croatia, nautical tourism is seen as a ne...
Autori: Mirjana Kovačić
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26962

The paper presents a general description of the need to use wooden biomass resulted from Osier willow and beech. This wooden biomass represents a renewable energy source and some new directions in scientific research field could be opened. The paper mainly describes a parallel between the energy resulted from these two types of biomass, namely from Salix viminalis L. and Fagus sylvatica L. species, in order to obtain the best solution between them. Growth crop of this new specie of Osier sali...
Autori: Tatiana Grîu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26964

The adsorption characteristics of nitrate ions from aqueous solution using Lewatit FO 36 was investigated as a function of pH, biomass dosage and contact time. Results showed that optimum conditions were obtained at pH 8, adsorbent dosage of 160 mg/L and contact time of 60 min. At the optimized experimental parameters, the maximum nitrate adsorption capacity of Lewatit FO 36 was 200 mg/g and nitrate adsorption followed Freundlich model. Among seven kinetic models used in this study, the adso...
Autori: Mehdi Ahmadi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26996

This paper presents a mathematical model developed to solve the problem of adequate blending composition for copper smelting process and it is exclusively for the purpose of the case study in "RTB BOR" (Copper Smelter in Bor). The model proposes an objective function, which maximizes the profit by calculating both the “penalties” for the hazardous concentrate elements and “benefits” for the useful ones. Apart from the basic constraints of the existing mathema...
Autori: Ivan Jovanović
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27002

In this study the immobilized waste black tea (Camellia synensis) was used as biosorbent for the removal and recovery of Al(III) and Cr(VI) ions from the synthetic aqueous solutions. Batch experiments were conducted to optimize the various biosorption parameters that affect the biosorption capacity of immobilized waste black tea. Maximum biosorption capacity was found with a biosorbent dose of 0.1g/100 mL for both metal ions. Optimum biosorption capacity for both Al(III) and Cr(VI) ions was o...
Autori: Haq Nawaz Bhatti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27004

A pure strain of Pseudomonas chlororaphis DJ-4 capable of anaerobic biodegradation of o-xylene, m-xylene and p-xylene was isolated from gasoline contaminated soil. In batch cultures, growth of the strain and biodegradation of xylene isomers led to stoichiometric reduction of nitrate. P. chlororaphis DJ-4 could degrade 150 mg L-1 of m-xylene completely within 12 days and without a lag period. However, higher initial concentrations of o-xylene and p-xylene were toxic to the bacterium of P. chl...
Autori: Junfeng Dou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27005

A mine ventilation system provides a fresh air flow to the underground workings in a coal mine. Such sufficient air volume can dilute and remove noxious gases (typically NOx, SO2, CH4, CO2 and CO) and maintain a suitable working environment for coal miners. On the other hand, a poor ventilation system often leads to serious consequences such as mine gas explosions, production loss or higher operational costs. Hence, the functions of mine ventilation system are very important for an undergroun...
Autori: Jianwei Cheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27008

Semi-conductor oxide enhanced photocatalysis is a sustainable technology suitable for disinfection of water contaminated with pathogens. Disinfection of Escherichia coli was investigated using an immobilized thin film tungsten trioxide (WO3) photocatalyst in a visible light-driven photoelectrocatalytic batch cell (PECB). Disinfection efficiency was monitored under dark electrocatalytic, photolytic and photoelectrocatalytic conditions and assessed using a culture-based approach. Optimal disin...
Autori: Efetobor Scott-Emuakpor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27014

The aim of this study was the diversification of fodder yeast assortments with viable economic effects while reducing the pollution to the environment by capitalisation of wastewaters with high monosaccharides content from pulp and paper industry. As inoculum, in the bioreactor, a mixture of two species of yeasts Candida utilis and Candida arboreea (1:1 ratio) was used at 38°C, pH 5.5 and an air flow of 0.02 L/h was insured. Wastewaters from technological process of pulping of softwood wi...
Autori: Andrei I. Simion
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27028

Knowledge of the basic levels of heavy metal concentrations in soil and their spatial disposition, on a certain area, is particularly important for economic activities, but especially for preventing and stopping pollution. The spatial distribution maps, obtained by measurements performed (of a certain density), cover the entire studied area and are very useful. According to the literature several methods are known for building such maps, most of them based on a simple mathematical interpolati...
Autori: George-Călin Rogozan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27031

The generation of energy via fossil fuel burning results in carbon emissions. These emissions contribute to the climate change of our world, particularly in terms of global warming. On the contrary, energy has become blood of life for the existence and functioning of our built environments. In order to control carbon emissions, the UK has taken lead among many countries around the globe and especially in Europe by passing a bill for the Climate Change Act 2008 which legally binds the UK to at...
Autori: Talib E. Butt
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27045

Since the link between tourism and economic growth is not automatic, a country must meet certain characteristics in order for this link to occur and make it sustainable through time. Among these characteristics, environmental and sustainable policies, the existence of hard and soft infrastructure, a regulated labour market and economic and financial indicators play a key role. Therefore, Country Risk Score (CRS) can represent a good indicator of the sustainability of countries. Using Country ...
Autori: Roberto Cervelló-Royo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27074

This article addresses a cross-destination research to study a key issue for the growth and competitiveness of the tourism sector, which is the perceived environmental sustainability of a destination. Particularly, a segmentation analysis is developed to examine potential unobserved heterogeneity across tourists regarding their perception of environmental sustainability of the destination. 918 tourists of five Mediterranean Sea Basin cities are studied using a latent class segmentation techni...
Autori: Raquel Sánchez-Fernández
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27075

There is an increasing social and political awareness of the importance of the development of an environmental responsibility orientation among firms. However, despite a growing interest of environmental management research in Hospitality Industry in the last decade, there are still relevant topics that have not received sufficient attention yet. Research tends to focus on large companies almost neglecting Small and Medium-sized enterprises. Based on evidence from “The Eurobarometer 381...
Autori: Ángela González-Moreno
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27078

This work evaluates the potential of Phyllanthus debilis for the adsorption of Zn2+ and Ni2+ ions using synthetic solutions. Adsorption experiments were performed in order to examine the effect of pH, contact time, biomass concentration and initial metal ion concentration in the removal process, in a batch mode. The results revealed that the adsorption is highly pH dependent. The adsorption of Zn2+ and Ni2+ ions were concentration dependent and increased from 2.446 to 8.688 mg/g for Zn2+ and ...
Autori: Mohammad Aslam
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27084

Oceanic islands face very serious environmental issues such as climate change, environmental degradation, loss of biodiversity and proliferation of invasive alien species. The delimitation of the IES shall consider the many inter-relationships between all biophysical and cultural variables, contributing therefore to a better understanding of the socio-ecological system. The Island Ecological Structure (IES) includes the key natural resources, biophysical functions and ecological processes wit...
Autori: Artur Gil
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27085

Heavy metal pollution is a major source of aquatic contamination and has deleterious effect on the environment, therefore treatment of the polluted sites and wastewater becomes very essential. Biofilm based bioremoval of heavy metals have been a new area of research. Bacterial strains belonging to the genus Bacillus, isolated from chromium polluted soil (Palar river basin, India) have been employed as consortium for Cr(III) removal from chrome tanning effluent. The bacterial isolates were fou...
Autori: Aafreen Fathima
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27086

This paper reports the potential of rice husk waste biomass to remove copper (II) from simulated wastewater under different experimental conditions. For this, rice husk has been pre–treated by boiling, formaldehyde and concentrated sulphuric acid. Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy and Energy dispersive analysis X–ray analyses were performed before and after adsorption, to explore number and position of the functional groups available for copper ...
Autori: Manjeet Bansal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27095

Three different winter wheat production systems for three European countries (United Kingdom, France and Italy), all with different climatic conditions, soil management and input levels (e.g. tillage, fertilizers, herbicides and pesticides) were analysed from an environmental perspective. The intended applications were the analysis and comparison from a Life Cycle Assessment (LCA) perspective and the identification of the key parameters which have the greatest influence on final results. The ...
Autori: Daniele Cambria
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27102

In order to improve the soil fertility, several eco-friendly alternatives to traditional cultivation practices have been proposed. The use of biofertilizers, such as rhizobacteria with different plant growth promoting properties is an environmentally-friendly option to achieve sustainability in agriculture. In this context, two bacterial strains (Bacillus pumilus R3 and Pseudomonas lini R7) isolated from the rhizosphere of runner bean plants were assessed for their plant growth promoting abil...
Autori: Gabriela Mihalache
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27108

Biological control relying on soil microorganisms may offer feasible and sustainable perspectives in many agrosystems for management of soil pests such as root-knot nematodes (RKNs, Meloidogyne spp.). The rhizosphere environment shows a complex of soil microbial communities, including beneficial organisms such as specialized bacterial pathogens and/or of rhizosphere fungi. New advanced technologies like Next Generation Sequencing (NGS) may enlarge our knowledge about the biodiversity and rol...
Autori: Aurelio Ciancio
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27109

The roots of this study are generated by the problems of plastic waste accumulations: insufficiency of storage spaces, storage costs and outgoings of plastic waste recycling, recovery, decomposition or reprocessing. The paper develops and details a modular prototype, for multifunctional territorial use, offering non-polluting and aesthetic possibility of plastic waste storage. The progress in the related fighting pollution areas have been approached, such as waste management through ecologica...
Autori: Doina Mira Dascălu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27112

This work focuses on treatment of lead polluted waste glass from urban collection (Pb≈5% wt) for its valorization as support in the immobilization of lipase, because soda-lime glasses are used in enzymatic catalysis. First of all, an extraction process of surface Pb was performed. The process is based on nitrilotriacetic acid (NTA) chelating agent. The operating conditions are: T=80°C, t=1h, pH 10, solid/liquid weight ratio=1/10, reagent concentration=0.1 M. Leaching tests at contr...
Autori: Luisa Barbieri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27122

Waste frying oil (WFO) is a complex and heterogeneous waste collected mainly from restaurants and, to a lesser extent, from food processors and households. In the last decades, interest for this waste has deeply grown and a strong competition in grabbing this raw material has begun. About 90% of WFOs collected in Europe is recycled for biodiesel production, being the high free fatty acids (FFAs) concentration in WFOs one of the main drawback limiting the yield of the conversion process. In th...
Autori: Cinzia Pezzella
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27130

As a part of the development of the Environmental Footprint (EF) guidelines, in June 2014 the European Commission started 11 pilot projects for the development of Product Environmental Footprint Category Rules (PEFCRs) for food, feed and beverage products. The PEFCRs are developed by technical secretariats involving various stakeholders from industries, academia, governments, trade unions and non-governmental organisations. This paper presents the state of the art of developing the PEFCR for...
Autori: Carlo Russo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27132

The production process of wine and distilled generates several by-products (20-30% of total production). Currently, most of the solid by-products (pomace, stalks, lees and seeds) obtained as downstream of the vinery industry, are conferred to the distillery or, less frequently, used in agriculture and for energy production. As a consequence, much of the antioxidant compounds contained in the grape is unused in the products of processing and is lost. These substances (among which the most impo...
Autori: Paola Zitella
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27135

Sustainable use of metallic mineral resources of Serbia, being a part of natural resources, represents the basis for the planning, functioning, development and growth of numerous sectors of the economy as well as the basis for assessing the positions and perspectives for further socio-economic development of the country. Following a two-decade long period of socio-economic regression and economic and financial decline in Serbia, as well as problems in the functioning of institutions and strat...
Autori: Radule Tošović
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27138

The accumulated characteristics of typical veterinary antibiotics (tetracyclines, sulfonamides, quinolones and macrolides) and tetracycline resistance (tet) genes in the different wetland soils (Krasnozem and Chernozem), and the effects from Phragmites australis were evaluated in this study. Results indicated that the concentrations of targeted antibiotics and tet genes in soils with swine treatment would increase as time progressed. The tet genes and targeted antibiotics (except sulphonamide...
Autori: Lin Liu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27145

Antibiotic pollution has become one of the most important emerging soil contamination types, and has received great attentions in recent years. Understanding the microbial functional processes of soil ecosystems under antibiotic contamination is of critical importance for ecological risk assessment and pollution control. In this study, the responses of soil microbial respiratory activity and ammonification were studied under different concentrations of tetracycline, chlortetracycline, and nor...
Autori: Liangyin Yi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27151

China has witnessed a rapid growth of livestock breeding industry. Pollution from livestock breeding industry has also increased unprecedentedly and become a big issue of environmental quality. China has attached great effort to address the issue associated with intensive livestock breeding. In 2009, China and New Zealand started a cooperation project on pollution prevention and waste emission reduction in dairy industry. It is meaningful to borrow experience from well-developed countries to fac...
Autori: Jinping Tian
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27152

Dried Typha angustifolia (TA) leavesor commonly known as the common cattail were evaluated as an adsorbent for the adsorption of lead in synthetic aqueous solutions. Equilibrium studies were conducted in a batch mode and the selected sorption isotherms were then applied. Equilibrium was achieved after 8 hours. The selected sorption isotherms were the Langmuir, Freundlich, D-R and Temkin model. Data fitting was done based on linear regression analysis. The adsorption system fitted the Langmui...
Autori: Yen Ling Sharain-Liew
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27166

Environmental problems that result from increases in the generation of urban solid waste are compounded by the inadequate management of wastes generated by large-scale meal production at Food and Nutrition Units (FNUs). With the growth of eating out sector, solid waste management of FNUs should be focused on minimizing waste generation, while considering all regulations enforced, including those related to hygienic quality of food. The goal of this study was to determine the quantities and t...
Autori: Jaqueline Zotesso
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27168

A new material containing 2-(2′ thiazolylazo) p-cresol (TAC) grafted poly acrylamide (PAA) was prepared and its adsorption ability was studied for the removal of inorganic mercury from aqueous media. Adsorption of Mercury (II) ions from aqueous solution was investigated in detail as a function of mercury concentration, pH, ionic strength, and temperature. The adsorption data were analyzed by using the Langmuir, Freundlich and Dubinin-Radushkevich (DR) models. The adsorption of Mercury (...
Autori: Selçuk Şimşek
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27170

Safe utilization of fly ash (FA) and reclamation of sodic soils are important environmental problems. In this study a field experiment was carried out with Vigna radiata L. crop using fly ash (FA) and phosphogypsum (PGY) as amendments in sodic soil during 2011 at Lucknow, Uttar Pradesh, India. V. radiata L. was sown in sodic soil amended with press mud (10 t ha-1) considered as control. Besides, 10 and 20 t ha-1 doses of FA and PGY were considered as other four treatments, respectively. The grow...
Autori: Kripal Singh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27180

The aim of this research is to investigate adsorption characteristics of Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Pb(II) complexes with MGDA (methylglycinediacetic acid) from aqueous solutions by using the multifunctional chelating ion exchanger Diphonix. MGDA, belonging to a group of new generation complexones which readily undergo biodegradation, is patented by BASF and marketed under the brand name Trilon M. Optimum adsorption conditions were determined as a function of phase contact time, ...
Autori: Justyna Jachuła
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27183

In this paper new techniques for the analysis and improvement of the transfer function of a low-pass filter made in planar electromagnetic technology are proposed. The low pass filter is a fundamental element of the filter used for conduction electromagnetic interferences suppression. For this purpose, in order to determine the filter’s transfer function, 3D electromagnetic CAE (Computer Aided Engineering) are coupled with simulation software programs which use equivalent electric circ...
Autori: Adina Racasan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27198

A new simple empirical model is proposed to describe the waste sludge volumetric flow rate in the steady-state completely mixed activated sludge process. The model is derived based on the nonlinear regression analysis by using the Richardson’s extrapolation method and the Levenberg–Marquardt algorithm. The application of the model has been explored for a wide range of eleven fundamental biological design variables and tested against a total of 1500 additional computational scenarios ...
Autori: Kaan Yetilmezsoy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27202

In this study, the biosorption of zinc(II) ions from the aqueous solutions by the lichen biomass of Xanthoria parietina (L.) Th. Fr. was studied as a function of contact time, initial pH of metal solution, biosorbent concentration, initial metal ion concentration and stirring speed in a batch system. The optimum pH value for maximum zinc biosorption was found to be 5.5. Concentrations intervals from 50 mg/L to 250 mg/L were tested and it was observed that the biosorption efficiency depends on th...
Autori: Zuleyha Bingul
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27213

Banana stalk (BS) waste is used to remove Pb2+ from aqueous solution. Equilibrium data were analyzed with Langmuir and Freundlich adsorption models, which fit better in the former equation. The qmax (maximum metal uptake capacity) for Pb2+ adsorption was 105.14 mg/g of BS at pH 5.0, which followed pseudo-second order kinetics model. IR spectra confirmed the participation of hydroxyl, amino, and acidic functional moieties in the removal of Pb2+. The major mechanism involved in the biosorption of ...
Autori: Kashif Iqbal Sahibzada
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27214

In this study, the oleaginous yeasts cultured in tomato waste hydrolysates (TWH) to produce microbial lipids that offer a suitable alternative to vegetable oils as feedstock for the biodiesel synthesis. The TWH were prepared by acid hydrolysis (2.5% H2SO4). To obtain higher growth rates, as well as higher lipid contents, Lipomyces starkeyi were cultured under original nitrogen content (TWHON), lower nitrogen content (TWHLN), attained by alkaline precipitation of TWHON followed by centrifugation ...
Autori: Abu Yousuf
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27226

Maize (Zea mays L.) is considered one of the most popular grain crops in China. Among various agricultural technologies, soil mulching is the one that is used more and more in recent years. Mulches influence the soil temperature, retard the loss of soil water, and limit the growth of weeds; and these are important factors in the production of maize. A two-year field experiment was carried out at Shanghai, in southeast of China, in order to evaluate the effects of water hyacinth residues as mulch...
Autori: Dayong Xu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27229

Rotifers are known as cosmopolitan organisms, found in high density in most waters, often representing the dominant group in terms of species diversity and abundance in the zooplankton community. Since the functionality of an ecosystem is closely related to the diversity of communities, analysis of rotifers assemblage may be a useful tool in understanding the mechanisms of the spatial and temporal changes on this level. Data were collected from 2008 until 2010, in distinct areas of Danube, Sf...
Autori: Larisa Florescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27247

An important objective of local authorities is to obtain quickly precise information concerning the land cover changes and to monitor them. This type of information can be gathered with the help of multitemporal satellite images Landsat Thematic Mapper (TM) and Landsat Thematic Mapper Plus (ETM+). This paper identifies and analyzes the land cover changes in the metropolitan area of Brasov, Romania, using Landsat 5 TM images acquired in 1987 and 2009 and Landsat 7 ETM+ acquired in 2000. The image...
Autori: Iosif Vorovencii
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27250

Reuse of grey water is an attractive option when available water supplies are limited, and can reduce demand on water supplies and provide additional water resource. This comparative research was conducted to assess the suitability and effects of reusing grey water, treated and untreated, as irrigation water for vegetables, compared with tap water. Tomato (Lycopersicon esculentum) and green bean (Phaseolus vulgaris) plants were selected as examples. The collected grey water samples were treated ...
Autori: Jehad Y. Al-Zou by
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27254

Current research details methodological framework for the land planning of the recreational activities based on ecologic approach. Human impacts on landscapes caused by touristic activities should be in accordance with sustainability level, i.e. without changing natural landscape elements, their function and processes, as well as environmental quality. Region of Štiavnické Bane in Slovakia represents a case study area that is completely under nature and landscape conservation. The ...
Autori: Michal Klaučo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27264

In this study was synthesized MCM-41 mesoporous silica by hydrothermal treatment and funtionalized with titanium in order to obtain mesoporous materials with high surfacea area and photocatalytic activity in photodegradation of organic compounds as antibiotics. The functionalization of the synthesized support material was achieved by impregnation from alcoholic solution. The obtained materials (MCM-41) and (Ti-MCM-41) were characterized by X-ray diffraction (XRD), scanning electron microscopy (S...
Autori: Cristina Orbeci
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27274

The Romanian peat was used as low-cost adsorbent to remove Cd(II) ions from aqueous solutions. The cadmium adsorption capacity of the peat was studied as a function of the solution pH (3-5.5) and temperature (293 – 333 K). Adsorption capacity was found to increase with the pH increasing and temperature decreasing and attained a maximum value of 27.9 mg/g at pH = 5±0.1 (acetate buffer) and 293 K. In addition, various thermodynamic parameters such as free energy change (ΔG0), en...
Autori: Catalin Balan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27276

The Amara Lake is located at the south-eastern part of Romania. It is a shallow lake with an average depth of 3m and average extent of 1.32 km2, having a particular importance for the area in which is situated. This importance derives from its main functions in the ecosystem, namely: source of food, shelter and breeding place for almost 54 bird, balneary tourism attraction and jobs for the residents of Amara who live in the northern part of the lake. Under these conditions, the sustainable devel...
Autori: Ofelia Axinte
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27282

The purpose of the reservoir operation during flood period is to obtain the outflow hydrograph as flat as possible. Although simple in case of a unique reservoir, the problem becomes very complex for large systems with cascade reservoirs. Based on the well-known hydraulic software Mike Flood by DHI, a simulation-optimization model containing wave propagation equations, constraints related to the state or decision variables as well as an objective function were developed for obtaining optimal coo...
Autori: Aurelian Florentin Draghia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27295

In this paper life cycle assessment was applied to analyze and evaluate, from an environmental point of view, current and alternatives to the current solid waste management system in Banjaluka region. The current system, which is disposal on landfill, has significant adverse environmental impacts caused by methane emissions from landfill. Therefore, four different scenarios were developed as alternatives to the current waste management system. Landfilling with energy recovery, separate collectio...
Autori: Draženko Bjelić
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27312

The propagation of electromagnetic radiation was investigated at different points, and the theory of covariance was applied to identify the main parameters by recording the max, mean and min values of density. The biggest electric field strength values are emitted by the second generation (2G) GSM mobile phones that operate in the frequency band of 900 MHz. The smaller electric field strength values are determined by the higher frequency (1800 MHz) used by mobile phones and smaller maximum power...
Autori: Raimondas Buckus
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27314

This paper presents some experimental results regarding mechanical behaviour at shear cutting Miscanthus x giganteus stem with an oblique blade of different edge angles. Experimental determinations were performed using samples of about 30 mm in length and a medium diameter of about 6.3 mm to 8.9 mm. The biomass was cut with three bevel cutting blades of 30 degrees, with a tool angle of 10, 30 and 50 degrees, fitted on an equipment used for mechanical experiments type Hounsfield, with a working s...
Autori: Georgiana Moiceanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27317

With population growth and increasing industrialization, enormous amounts of agro-industrial wastes are being produced. Without proper use, these keep piling up leading to tremendous pressure on environmental safety. There is also considerable economic interest not only in the proper utilization of these wastes, but also in developing appropriate processes for this purpose. Sludge generated in pulp and paper mills is one of such solid wastes. Although several studies have investigated its reuse,...
Autori: Patrícia Raquel Silva Zanoni
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27320

Sustainability is considered a key issue for development and growth amongst governments, policymakers, researchers, and the public. In this context, indicators for sustainability are essential to measure and monitor progress and to indicate improvements that are needed, in order to achieve the sustainable development. Over the time many indicators were developed as individual or integrated indexes. Recently a new family of sustainability indicators were developed and used to assess the pressure ...
Autori: Cristina Ghinea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27339

The paper presents a study concerning the influence of the hydraulic and hydrological connectivity among the oxbow lakes and the restoration of riparian-zones have on aging. Interconnectivity oxbow lakes emerge after complex regulating works for the protection of the shores and bottom of the lakes. Research has analyzed the influence of the hydraulic connectivity of three lakes located in northern Poland on the structure of associated bottom invertebrates – elements that monitor the cond...
Autori: Anca Balan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27342

The paper is focused on a research project aiming to provide conditions for market competitiveness of producers and to guarantee the free movement of Romanian products on the EU. This is done by guaranteeing essential health and safety requirements applicable to work equipment in order to implement policies set out in the strategy EUROPE 2020. This strategy takes into account the priority of: favourable growth of inclusion-promoting an economy with a high rate of employment, ensuring social and ...
Autori: Anca Elena Antonov
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27371

In this pilot study, exposure to airborne microorganisms in solid recovered fuel (SRF) plants has been measured. Different steps in SRF production processes such as separation and size reduction can cause generation of airborne microorganisms. Exposure to these biological agents can cause some health problems, so their levels should be measured to assess the potential risks. Therefore, exposure to airborne total bacteria, Gram-negative bacteria, actinomycetes and fungi were measured in the runn...
Autori: Şenol Yildiz
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27373

In this study, a decision support system based on a stochastic optimization model under modeling uncertainty and parameter certainty (SOMUM-DSS) is developed for petroleum-contaminated sites management. The SOMUM-DSS incorporates scenario analysis, numerical simulation, multivariate analysis, nonlinear optimization within a decision support system. It provides an effective tool for decision makers to select the optimal remediation strategy. The developed SOMUM-DSS is then applied to a petroleum-...
Autori: Qi Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27374

Environment-friendly demulsifying strains could be applied in breakup of emulsion produced in the petroleum industry. The demulsifying strain Alcaligenes sp. S-XJ-1 was found to be capable of utilizing paraffin or certain pure n-alkane as its sole carbon source, and exhibited a strong cell surface hydrophobicity above 70% and demulsifying ability above 80%. A maximum biomass of 6.27 g/L was obtained when the demulsifying strain was cultured using eicosane as carbon source. A positive correlation...
Autori: Xiang-Feng Huang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27379

A comparative study of humic substances (HS) extracted from raw sludge and its digested product was carried out in order to analyze HS evolution during sludge anaerobic digestion. HS content, elemental composition, functional groups, infrared spectra and ultraviolet absorbances were analyzed by means of chemical and spectrographic methods. The extracted HS were also fractionated by ultrafiltration in order to obtain their molecular weight (MW) distribution. The results showed that humic acids (...
Autori: Huan Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27390

• EXPERIMENTAL INVESTIGATION OF TEMPERATURE EFFECTS ON THE PARAMETERS OF PHOTOVOLTAIC PANELS    • CONCENTRATIONS OF CHROMIUM, CADMIUM AND NICKEL IN TWO CONSUMED FISH SPECIES OF PERSIAN GULF, IRAN    • IMPROVING THE ENERGY EFFICIENCY OF RESIDENTIAL BUILDINGS BY USING A DRAIN WATER HEAT RECOVERY SYSTEM    • ASSESSMENT OF METAL CONTAMINATION AND ECOLOGICAL RISK IN URBAN SOILS SITUATED NEAR A METALLURGICAL COMPLEX    • FINANCIAL DE...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27398

EXPERIMENTAL INVESTIGATION OF TEMPERATURE EFFECTS ON THE PARAMETERS OF PHOTOVOLTAIC PANELS    • CONCENTRATIONS OF CHROMIUM, CADMIUM AND NICKEL IN TWO CONSUMED FISH SPECIES OF PERSIAN GULF, IRAN    • IMPROVING THE ENERGY EFFICIENCY OF RESIDENTIAL BUILDINGS BY USING A DRAIN WATER HEAT RECOVERY SYSTEM    • ASSESSMENT OF METAL CONTAMINATION AND ECOLOGICAL RISK IN URBAN SOILS SITUATED NEAR A METALLURGICAL COMPLEX    • FINANCIAL DEVELOPME...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27399

The Rural Development Plan (RDP) represent the most important source of contributions and support for the agro-food sector companies in Italy. The European Community planning tool based on a European Structural and Investment Fund (SIE) allows the agricultural and forestry entrepreneurs to undertake projects and investments for the improvement of their companies. During the 2014-2020 RDP program, the Emilia-Romagna region (Italy), promoted a rewarding mechanism to support those companies car...
Autori: Enrico Gerboni
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27404

Common issues of the gasification systems relate to filtering apparatus. Dry filtering processes are simple and reliable. However, the filtering material defines the maximum and minimum temperature at which the filter can operate properly. In addition, dry filtration is not effective on light tar compounds (i.e. benzene and toluene) or ammonia compounds. On the other hand, despite being very efficient, wet filters drop the gas temperature below the line of condensation of tar, ammonia and ste...
Autori: Giulio Allesina
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27412

A worldwide trend is leading the international community to explore the possible paths for the transition from a linear to a circular economic model. Recent studies identified the main enabling factors to facilitate this transition, among which closed loop logistics models and new service-based and function-oriented business models play a significant role. The diffusion of new business models relating to the use of a product rather than its ownership can indeed reduce material consumption and th...
Autori: Maria Grazia Gnoni
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27418

This paper describes shortly some outcomes of a project aiming to apply a scientific research directly to industry, passing through a system that wants to promote an economic "Pact" in relation to the new construction and renovation projects of energy, according to its fundamental guidelines of the moment: renewable energy and energy efficiency. The key point is to produce energy from recycled materials that become functional to dwellings (from the garden shed to furnishings, etc.),...
Autori: Marco Santarelli
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27421

The efficient use of fresh water sources and proper modeling of the water quality can only be possible when flows in the dam reservoir are well defined. Therefore, in this study, a hydrodynamics model of an actual dam reservoir in three dimensions for simulating a real dam reservoir flows for summer season is created. The model is developed using nonlinear and unsteady continuity, momentum, energy and k-ε turbulence model equations. In order to include the Coriolis force effect on the...
Autori: Fatih Üneş
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27430

Study on ambient noise cross-correlation has been progressively developed. However, it is still challenging for noise sources are not evenly distributed. Therefore, we are concerned with how the multiple parts of the noise cross-correlation function are affected by noise sources, so as to obtain more valuable information. The temporal variations of traveltime and amplitudes of noise cross-correlations computed in a moving 5-day window for the two period ranges corresponding to the primary (10...
Autori: Fang Ye
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27446

This paper reports an improved chlorolignin (CL) oxidative decolorization in alkaline media by the use of a heterogeneous system consisting of hydrogen peroxide and a silica [bis(dibenzoylmethido) copper II] (S1) catalyst. The catalytic functions of S1 in the presence of H2O2 were evaluated by comparing the chlorolignin decolorization in media with and without addition of catalyst. Since decolorization is associated with CL degradation, the pH variation and chloride release assays were carrie...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27448

In Romania many rivers have been canalized by non-submersible damming, flow diversions and channeling towards new routes, transversal arrangements, etc. The modifications of natural flow regimes brought severe impacts on all ecological functions of wetlands and on the natural functioning of river-floodplain systems. Due to damming only few of the floodplains function nowadays in a natural manner. Rivers and wetlands rehabilitations are bringing the well-known environment benefits, reason for wh...
Autori: Lăcrămioara Vlad
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27462

An evolutionary game of environmental regulation among local governments in China was established in this paper, and we analyzed the dynamic evolution rules of the environmental regulation strategy among local governments as well as the impact of environmental regulation on regional ecological efficiency in China by using the spatial panel simultaneous equations based on the panel data of various regions in China from 2007 to 2014. The research results show that the local government will adjust ...
Autori: Li Xing
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27471

This paper presents the trampling effects on vegetation composition in three Long Term Socio-Ecological Research sites (LTSER), respectively Neajlov Catchment, Bucegi-Piatra Craiului and Braila Islands (distributed within different biogeographical regions: continental, alpine and steppic), over a period of 3 years (2007-2009). The degree of damage is related to trampling intensity. In forest ecosystems significant declines in species richness was observed two weeks after trampling, from 75 passe...
Autori: Mioara Dumitraşcu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27474

Wastewater treatment using sequencing batch reactor (SBR) has certain advantages over conventional activated sludge system. The performance of sequencing batch reactor in treating high C/N ratio was investigated with suspended polyurethane and polystyrene attached growth biomass configuration. A sequence of 4 hr HRT, 0.3 month SRT and 1kg COD/m3 was employed to study treatment efficacy. Treatment performance was assessed by means of chemical oxygen demand (COD), total nitrogen (TN) and total pho...
Autori: Beenish Saba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27478

The delignification of wood pulp using hydrogen peroxide and xylanase enzyme in an ultrasonicator was studied at different process conditions. The factors influencing the chemical delignification were studied simultaneously using the Box-Behnken design of experiments. The mathematical model for Kappa reduction as functions of consistency of the pulp, concentration of peroxide and the temperature of delignification was developed. The response optimization studies for minimizing the Kappa numb...
Autori: Palaniappan Ramesh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27480

In the current work, a numerical model for the prediction of temperature, air velocity, relative humidity and ammonia distribution released by sheep and goats manure inside a naturally ventilated livestock building is presented. Given that noteworthy amount of gaseous pollutants are emitted by the agricultural and animal husbandry activities, the study of the indoor microclimate is essential to be investigated for the healthy growth of the breeding livestock. The developed numerical model is sat...
Autori: Catherine Baxevanou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27482

The particulate matter samples were studied in the surrounding of the different mills in Penang and Kedah State, Malaysia. Multivariate statistical techniques such as multivariate analysis of variance (MANOVA), discriminant analysis (DA) and principal components analysis (PCA) were applied in analyzing the air quality data. MANOVA showed a strong significant difference between the five palm oil mills. DA identified two functions responsible for discriminating the mills and it showed that the...
Autori: Nik Norulaini Nik Abd. Rahman
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27484

An apatitic calcium phosphate gel (HaG) was elaborated and used to treat municipal wastewater in a physicochemical cycle prior to the standard biological degradation process. Preliminary laboratory batch experiments outlined the kinetics of heavy metal sorption by monitoring the concentrations found in filtered fractions as a function of treatment time. On site experiments were performed in a municipal wastewater treatment plant by derivation of real wastewater into an experimental tank. In this...
Autori: Nathalie Lyczko
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27488

The Vrancea seismogenic area, located at the South-Eastern Carpathians in Romania, is generating extreme destructive subcrustal earthquakes in Europe. The largest events generated in the last ten years in the Vrancea subcrustal domain occurred on May 14, 2005 (01:53, 45.64oN, 26.53oE, h=149 km, Mw = 5.5), April 25, 2009 (17:18, 45.68oN, 26.62oE, h=110 km, Mw = 5.4) and October 6, 2013 (01:37, 45.67oN, 26.58oE, h=135 km, Mw = 5.2). The purpose of the present paper is to determine the seismic ...
Autori: Mircea Radulian
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27492

This study investigates the dynamic relationship between economic growth, energy consumption, financial development, and CO2 emissions at macro level in the case of 49 countries from Europe and Central Asia over a two-year period. The research focuses exclusively on country-level characteristics and uses a heteroscedasticity-consistent standard error estimator (HC3) to analyze the aforementioned relationship. The proposed econometric models test whether: i) the level of development of financial ...
Autori: Marilena Mironiuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27494

Nature-based tourism is increasing rapidly in China, forcing policy makers to pay ever-greater attention to the balance between tourism development and natural resource conservation. Taking Jiuzhaigou National Park in Sichuan, one of China’s most famous nature-based tourism sites as an example, this study uses travel cost and contingent valuation methods to estimate the landscape’s “use value” from recreation and users’ willingness to pay for additional measures of ...
Autori: Cheng Cheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27499

Fungal isolate Aspergilius niger V-8 (IITB) was isolated from the sludge of anaerobic digester of distillery wastewater treatment plant and was found to be an appropriate fungal isolate for the purposes of decolourization of anaerobically digested molasses spentwash (ADMS). The study aimed at optimization of the environmental parameters for achieving maximum decolourization of ADMS using isolated fungal species. Environmental parameters like initial pH, mixing, immobilization and surfactant a...
Autori: Mrityunjay Singh Chauhan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27502

Pot experiments were performed with a barren soil amended with fly ash stabilized municipal sewage sludge to cultivate Brassica chinensis. Accumulation and transformation of heavy metals in the tested soil-plant system were investigated. The results showed that appropriate application of fly ash-sludge mixture could improve the growth of Brassica chinensis. The plants cultivated in F30 treatment, which contained 14% (volumetric) sludge and 6% (volumetric) fly ash, presented the highest yield and...
Autori: Ruilian Yu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27511

Protected areas are valuable ecosystems standpoint providing various ecological processes and functions. Unfortunately, during the recent decades, population growth and human development have been changed the land use/land cover of the most protected areas in the world. Varjin Protected Area is one of the oldest protected areas. In this study, landscape metrics were used to reveal landscape patterns in Varjin Protected Area using Landsat satellite imagery from 1986, 2000 and 2010. For this purpo...
Autori: Shirkou Jaafari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27512

An anaerobic-aerobic (An-Ox) sequencing batch reactor (SBR) was operated for the growth of phosphate accumulating organisms (PAOs), while an anaerobic-anoxic (An-Ax) SBR was used for the growth of denitrifying PAOs (dPAOs). Both reactors exhibited successful enhanced biological phosphorous removal (EBPR) performance. The sludge P contents in the two reactors increased from approximately 2% at the beginning of the operation to 9.1% (An-Ox SBR) and 7.3% (An-Ax SBR) after 140 d. The results of the...
Autori: Hansaem Lee
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27525

Irrigation is an increasingly important practice for sustainable agriculture. Water reuse as refined or non-refined wastewater can help agroecosystem productivity. Contaminated water may influence seed germination. Two experiments as laboratory and pot were carried out to assess impact of different levels of laundry detergent and water stress on seed germination and early growth in maize. At the laboratory experiment, seeds were treated with solutions of 0, -0.01, -0.09, -0.6 MPa polyethylene gl...
Autori: Hassan Heidari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27527

This paper investigates the macrophyte Azolla pinnata modified with sodium hydroxide, as a bioadsorbent for Cu2+ and Pb2+ ions in synthetic solutions. Biomaterial characterization was performed using Scanning Electronic Microscopy (SEM); Energy- Dispersive X-Ray Spectroscopy (EDX); Fourier Transform Infra-red (FTIR) spectroscopy techniques and through the blocking of carboxylic and sulfonic functional groups. Kinetics of the process has highlighted a quick and efficient adsorption, even in low ...
Autori: Arielle Barros
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27532

Due to its traditions and landscape characteristics, Romania has unique ecological advantages (e.g. diverse bioregions, unique habitats, flora and fauna diversity, large areas and functional land-use of semi-natural habitats) that need to be considered in nature conservation. Much of the biodiversity-rich habitats are in cultural landscapes, as well. This paper providing a review of how conservation policy evolved in Romania and how Romania managed to integrate components such as biodiversity co...
Autori: Klára Benedek
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27533

The tenacious technological development at latter decades has conditioned the growth of electrical and electronic equipment (EEE) amount and generation of their waste. That is a global heterogeneous problem including different stakeholders and various aspects: environmental, economic, social and technological. The regional electrical and electronic waste (WEEE) management systems (MS) are developed in order to solve this problem. The implementation of WEEE recycling and collection targets is not...
Autori: Inga Gurauskienė
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27537

In this paper, a model based on Back-Propagation (BP) artificial neural network was proposed, as a tool predict the soil suitability for cultivation in Jiangxia district. The model takes the soil nutrients indicators as the input and the level of soil suitability as the output. The correlation analysis showed that the correlation coefficient between expected output and actual training result is 0.99. The simulative results indicate that the learning and generalization ability of the model perfor...
Autori: Zhuoyan Feng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27546

In this study major factors affecting the phenolation process of lignosulfonate (LS) waste liquor (recovered from pulp and paper industry) were optimized in order to improve LS substitution for replacing petroleum-based phenols during phenolic resin manufacturing. Four different parameters, namely phenol/lignosulfonate ratio, time, temperature and lignosulfonate waste liquor concentration, were varied in an experimental program having as response function the reaction yield. Response Surface Met...
Autori: Andrei Ionuţ Simion
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27551

Plant growth promoting rhizobacteria (PGPR) serve as an alternative tool in sustainable agriculture. PGPR influence the heavy metal accumulation of crops in contaminated soils, either by decreasing or increasing the accumulation. This study focuses on the effect of plant growth-promoting rhizobacteria on the heavy metal uptake, plant growth and stress response of bean plants. The simultaneous treatment of Cd2+ and Mitsuaria chitosanitabida T310-2/4 (PGPR strain) as well as Zn2+ and bacteria resu...
Autori: Éva Boglárka Vincze
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27554

Microalgae can be considered as significant sources of sustainable and beneficial biocompounds such as carotenoids, lipids, proteins, polysaccharides, pigments, vitamins etc., with many uses in energy production (biofuels), pharmaceutical, cosmetic and food industries. This class of microorganisms are considered as sustainable feedstock due to some major advantages related to metabolism modulation, faster growth rate compared to plants, no use of terrestrial land. This review will present the mo...
Autori: Alexandra Cristina Blaga
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27558

Urban expansion, often seen as an indicator of economic growth and a possible response to housing crisis in big cities, is the main driver for carbon emissions in the metropolitan area due to higher values of household income, vehicle ownership and home size. The transport related pollution includes over 200 different compounds: besides CO2 emissions, CO, NOx, BTX and dust resulting from exhausting processes, from abrasive wear of brakes, tires and road surfaces. The expansion of the urban areas...
Autori: Lucian Roșu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27560

Dielectric measurements were carried out on a series of bent-core liquid crystals based on resorcinol and 2, 7-dihydroxinaphtalene cores and presenting B mesophase in between 30-160°C. The dielectric constants in the liquid crystalline phase were measured as a function of frequency and temperature. The dielectric relaxation of bent-core compounds has been analyzed by dielectric constants/frequency curves. The variation of the dielectric strength with temperature has been determined as well. ...
Autori: Irina Carlescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27568

Livestock production is under growing public and scientific scrutiny for its greenhouse gas (GHG) emissions. This article contains a preliminary assessment of the inclusion of upstream life-cycle GHG emissions in concentrated feeds design, using the most common nonlinear programming optimization algorithms to determine feed composition. First, GHG emissions are included as costs in a single criteria optimization problem. The unit price of GHG emissions was obtained using a genetic algorithm. Sec...
Autori: Ricardo F.M. Teixeira
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27572

Environmental quantitative risk assessment requires the development of multimedia modeling tools to address dynamic site conditions at field scale. This work is the second part in a two-part series. A new fuzzy-set enhanced environmental multimedia modeling system (FEMMS) has been presented in Part I. Environmental multimedia modeling often involves a sizeable amount of parameters and data. The challenges have been the difficulties to quantify the uncertainties and to manage the data and main mo...
Autori: Zhi Chen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27573

• Environmental engineering and Management Journal No. 4    • AN ENHANCED ENVIRONMENTAL MULTIMEDIA MODELLING SYSTEM (FEMMS): PART II – USER INTERFACE AND FIELD VALIDATION    • COST-EFFECTIVENESS OF OPTIMIZING CONCENTRATED FEED BLENDS TO DECREASE GREENHOUSE GAS EMISSIONS    • FATE AND BIODEGRADATION OF ESTROGENS IN THE ENVIRONMENT AND ENGINEERING SYSTEMS – A REVIEW    • ANALYSIS OF THE MATERIAL COMPOSITION OF MIXED MUN...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27577

• Environmental engineering and Management Journal No. 4    • AN ENHANCED ENVIRONMENTAL MULTIMEDIA MODELLING SYSTEM (FEMMS): PART II – USER INTERFACE AND FIELD VALIDATION    • COST-EFFECTIVENESS OF OPTIMIZING CONCENTRATED FEED BLENDS TO DECREASE GREENHOUSE GAS EMISSIONS    • FATE AND BIODEGRADATION OF ESTROGENS IN THE ENVIRONMENT AND ENGINEERING SYSTEMS – A REVIEW    • ANALYSIS OF THE MATERIAL COMPOSITION OF MIXED MUN...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27576

According to EU Strategy for the Baltic Sea Region, Lithuania obligates to ensure sustainable growth, gain and maintain good condition of marine environment until 2020. In accordance with the sustainability approach, every potential cost and energy cutting as well as social sustainability measure for wastewater treatment should be explored. Nonetheless, Lithuania wastewater treatment plants (WWTP) in the sustainability context have never been evaluated before. A comprehensive set of 30 sustainab...
Autori: László Gyenge
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27578

According to EU Strategy for the Baltic Sea Region, Lithuania has to ensure sustainable growth, gain and maintain good condition of marine environment until 2020. In accordance with the sustainability approach, every potential cost and energy cutting as well as social sustainability measure for wastewater treatment should be explored. Nonetheless, Lithuania wastewater treatment plants (WWTP) in the sustainability context have never been evaluated before. A comprehensive set of 30 sustainable dev...
Autori: Jolanta Dvarionienė
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27583

Plant growth promoting rhizobacteria (PGPR) colonize rhizosphere and enhance growth in crop plants, by producing various regulatory substances. Since PGPR employ diverse array of mechanisms and exact mechanism and role are still to be established. Therefor experiment was designed 1) to identify and 2) to select potential rhizobacterial strains based on their impact on the growth, physiological and enzymatic activities of rice. A CRD pot experiment with six PGPR isolates; two containing only ACC-...
Autori: Waseem Hassan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27587

This paper describes an eco-efficiency decision support model for of end-of-life solid waste recycling. A holistic approach in balancing environmental pollution concern and waste recycling is required. A system dynamic model is based on mathematical model of the supply chain, and decision-making analysis is supported with the online spreadsheets. A criterion function-based modelling is used as a core model for simulation that uses net present value-based metrics of the supply chain activities. T...
Autori: Stanislav Avsec
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27591

This work evaluates the effect of 5 mixtures of water treatment sludge, soil from the Cerrado region (Brazil) and a commercial substrate on the growth of 4 species of native plants (Copaifera langsdorffii, Astronium fraxinifolium, Peltophorum dubium and Tabebuia roseo-alba) from the Brazilian Cerrado. A randomized design was setup with four repetitions and WTS loading rates of 0, 204, 417, 638 and 869 g/kg. Plant sampling for analysis was performed at 30, 60, 90, 120 and 150 days after planting,...
Autori: Paulo Scalize
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27593

The selection of the favourite elementary watershed for a hill reservoir needs the association of all the essential criteria and all the interested decision makers. A geographical information system (GIS) is a strong tool for studying spatial data but it does not offer an appropriate decision making methodology. Due to their spatial aggregation functions, Multicriteria Analysis (MCA) methods can simplify decision making in situations where various solutions are available, and when several criter...
Autori: Mohamed Zaoui
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27594

The paper presents a case study of a significant intervention conducted on a major Italian airport for improving the structural and functional properties of the runway safety STRIP in order to fulfill specific national and international standards. The STRIP had to accomplish strict requirements in terms of the maximum longitudinal and transversal terrain slope and minimum values of bearing capacity; in particular, soil bearing capacity was identified as the main lack and thus the most urgent ac...
Autori: Maurizio Crispino
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27603

The present work aimed to optimize a new economic medium for biopolymers production by Rhizobium leguminosarum. Biopolymers were poly-β-hydroxybutyrate and exopolysaccharide (EPS and PHB). They were extensively used in various industrial sectors. Statistical experimental designs and Response Surface Methodology were employed to optimize the medium components. A central composite design was applied to increase the production yield and predict the optimal values of the selected factors. An op...
Autori: Mohamed Sellami
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27609

Over the last few decades intensive human activities and climate changing have stressed ecological systems impeding sustainable development of the social economy in many regions in China. The importance of ecological security has gained greater prominence. Sustaining or restoring natural functions of water ecosystems is also crucial for human welfare. To assess water related ecological security (WES), this paper constructed a framework based on the Pressure-State-Response (PSR) model with indica...
Autori: Xiuping Hao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27615

The thermal degradation of kenaf (Hibiscus cannabinus) under the effect of several variables (particle size, Ar flow rate, sample initial mass and heating rate) was investigated. From experimental data and by application of various model-free methods (Friedman, Kissinger-Akahira-Sunose and Flynn-Wall-Ozawa), the activation energies (EA) were calculated as a function of conversion. The results obtained allowed to conclude that kenaf follows a multi-stage degradation mechanism, with EA values rang...
Autori: Silvia Román
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27617

In order to investigate the influence of coal macerals on biomethane production, two types of coal samples were collected respectively from Malan mine in Gujiao and Shaqu mine in Liulin, Shanxi. The vitrinite, inertinite and liptinite were separated by the methods of hand picking and float-and-sink test. Meanwhile, biomethane production experiments using the raw coal samples, vitrinite-rich coal samples, inertinite-rich coal samples as substrates were carried out in the laboratory. Finally, the ...
Autori: Hongyu Guo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27620

While trying to reduce the air pollution caused by traditional traffic means like planes and conventional cars, new concepts of car sharing (either conventional or electric) emerged. Although many such concepts are daring and innovative, they're not implemented on a large enough scale; to help reducing air pollution, the acceptance (and hence implementation) of these concepts needs to systematically increase. This paper introduces a design methodology for such a concept - based on competitiv...
Autori: Laszlo Bartha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27632

The growth of a non-axenic Phormidium bigranulatum-dominated mat was tested under a range of chemical parameters and types of substrate. Total biomass yield (in term of mg chlorophyll a) of mats grown on muslin cloth (0.64 mg) and cotton mesh (0.62 mg) were significantly higher than those on other substrates, such as, nylon net (0.50 mg), sands of river Sone (0.43 mg) and river Ganga (0.30 mg), rice husk (0.38 mg) and saw dust (0.21 mg). The Phormidium mat would be easy to handle in bioremdation...
Autori: Dhananjay Kumar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27635

This paper reviews the recent developments and implementations for greenhouses facilities, focusing on recent progress regarding greenhouse environment monitoring and control with many available application examples. State of the art and current trends concerning the main parts of the greenhouse environment automation are discussed: i) greenhouse climate models, ii) wireless sensor networks, iii) remote monitoring/command and supervisory control and data acquisition (SCADA) systems, iv) image pr...
Autori: Eugen Horatiu Gurban
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27644

Five indigenous soil microbes were isolated from chickpea rhizosphere soils of different location of Jaunpur, Mirzapur, Varanasi and Azamgarh district of eastern Uttar Pradesh. The microbial strains were identified as Pseudomonas aeruginosa BHUPSB01, Pseudomonas putida BHUPSB04, Bacillus megaterium BHUPSB14, Paenibacillus polymyxa BHUPSB16 and Mesorhizobium sp. BHURC05 by biochemical and molecular characterization. The isolated strains were tested for their plant growth promoting properties....
Autori: Jay Prakash Verma
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27654

This study deals with the decolorization and detoxification of tannery wastewater by an indigenous fungal isolate, Trichoderma viride SPFT1 isolated from untreated tannery wastewater. The results showed that treatment with Trichoderma viride SPFT1 reduced chemical oxygen demand (COD) (74.20%), nitrate (60.83%) and color (45.24%) of the tannery wastewater after six days of the incubation period. The toxicity assessment of the tannery wastewater on Phaseolus mungo L. var. PU-19 showed 70% seed ...
Autori: Smiley Sharma
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27658

The landfill reclamation project took place in the period from 2008 to 2009. Forestry reclamation was carried out in 2009. The aim of this project was to establish the growth of particular plant species, quantify plant species survival and changes in species properties over time. A phased approach was utilized to evaluate the technical and economic feasibility of the reclamation project; based on the results of these evaluations, in 2011 approximately 90 % of plant species survived during the...
Autori: Magdalena Daria Vaverková
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27668

Although considered a rare disease, endemic to low-income regions and unsanitary environments, leptospirosis is still encountered in some parts of Romania, in both rural and urban environments. Its specific pathways of transmission caused it to be a threat to people working with animals, pest control, farmers or those whose jobs place them in the presence of waters, sewers or in flooded areas. This paper investigates the occurrence and effects of leptospirosis by analyzing 17 cases of infec...
Autori: Doina Carmen Manciuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27678

Organoarsenic compounds are used extensively as swine feed-additives to promote animal growth and control diseases, e.g. roxarsone (4-hydroxy-3-nitrobenzenearsonic acid) and arsanilic acid (4-aminophenylarsonic acid) are usually overused in swine industry in China. As a cost-effective technology for animal manure treatment and reuse, composting is widely used for swine manure treatment. Therefore, the purpose of this study was to investigate changes of arsenic species and fractions during a full...
Autori: Rui Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27683

One of the main challenges for the development of biomass algal system production is the high operational and capital costs for these technologies. A great opportunity to overcome these challenges may however exist in the integration of wastewater treatment with algal biomass production. The algae are used for treatment of industrial wastewater, for purification of effluent originating from livestock production, while the studies concerning the use of algae species for the treatment of aquacultu...
Autori: Katya Velichkova
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27684

The changing characteristics of vegetation carbon patterns in the karst region of northwest Guangxi, China and their impact factors were analyzed on the basis of vegetation inventory data from 2005 to 2010. A radial basis function network model (RBFN) was constructed using data from 1377 samples and 13 environmental factors. The results for the 5-year study period were as follows: (1) The total carbon storage of vegetation had increased with an annual growth rate of 1.84% and the carbon density ...
Autori: Mingyang Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27692

The reuse of sewage sludge will be increasing in the future, with expansion of sewerage works and advanced sewage treatments. During anaerobic digestion of sewage sludge from wastewater treatment plants the humification of organic matter will have an important effect on the physico-chemical forms of heavy metals. The aim of our paper was to investigate mobility of zinc from dried anaerobic sludge (DANS) from municipal wastewater treatment plant (WWTP) via single step (simultaneous) extraction pr...
Autori: Vladimír Frišták
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27695

Though Scirpus triqueter plays an important role in protecting the ecological functions of Yangtze River estuary wetland which is frequently contaminated by petroleum, knowledge is limited about the mechanisms involved. In this study, comparative analysis of soil properties, microbial community structure and soil enzymes in the rhizosphere of S. triqueter and bulk soil was conducted throughout one year to provide an insight into the phytoremediation mechanism in the field. The total petroleum hy...
Autori: Jing Wei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27697

Novel systems based on modified azo-polysiloxanes and gelatin with potential biological applications were prepared and characterized. Simultaneous rheological and UV irradiation studies allowed evidencing structural modification inside the gelatin matrix. For all analyzed samples a shift in the temperature corresponding to the physical network destructuration, from 30˚C (corresponding to gelatin) to 40˚C (for the composite) was noticed. The experimental results proved the existence of ...
Autori: Elena- Luiza Epure
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27699

• INFLUENCING FACTORS OF THE ACCEPTABLE AMOUNT OF COMPENSATION OF FARMERS FOR CONTROLLING FERTILIZER-INDUCED WATER POLLUTION    • DETERMINATION OF THE RARE EARTH METALS IN THE RED MUD FOR POSSIBLE UTILIZATION    • Fe(II) AND Mn(II) REMOVAL FROM CONTAMINATED GROUNDWATER BY ADSORPTION: A COMPARISON OF ACTIVATED CARBON AND PINE BARK    • RESPONSE OF UPLAND COTTON GENOTYPES TO SALINITY AT EARLY GROWTH STAGES    • KINETICS AND ISOTH...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27782

Salt tolerance was studied in eight upland cotton cultivars (CIM-446, CIM-473, CIM-496, CIM-499, CIM-506, CIM-554, CIM-707 and SLH-284) under four NaCl salinity concentrations (50, 100, 150 and 200 mM) and control. Significant (p≤0.01) variations were observed among cultivars, salinity concentrations, and cultivar by salinity interactions for various growth traits and ions (K+ and Na+) accumulation in dry shoot and root tissues. As compared to control, the growth variables were decreased by i...
Autori: Zarina Bibi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27778

In the present study, Dowex HCR-S/H, cationic resin was used as a resin for the removal of cadmium from aqueous solutions. The experiments were carried out in a batch vessel. Subsequent experiments were performed as a function of initial solution pH, resin dosage, agitation time, initial Cd2+ concentration, solution temperature and agitation speed. Ion exchange rate increased with the increase in initial cadmium concentration, stirring speed and temperature. The Langmuir, Freundlich, Elovich,...
Autori: Baybars Ali Fil
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27777

The construction of rural tourism actor-network is an innovative transformation process, which integrates natural, economic, social and cultural focal actors of multi-functional agriculture in a rural area. The transformation process is a translation of these actors incorporated into a spatial distribution of landscape, which accelerates rural tourism through innovative integration. This study provides a method to measure and analyze the characteristics of focal actors in the translation process...
Autori: Liaoji Zheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27761

• INFLUENCING FACTORS OF THE ACCEPTABLE AMOUNT OF COMPENSATION OF FARMERS FOR CONTROLLING FERTILIZER-INDUCED WATER POLLUTION    • DETERMINATION OF THE RARE EARTH METALS IN THE RED MUD FOR POSSIBLE UTILIZATION    • Fe(II) AND Mn(II) REMOVAL FROM CONTAMINATED GROUNDWATER BY ADSORPTION: A COMPARISON OF ACTIVATED CARBON AND PINE BARK    • RESPONSE OF UPLAND COTTON GENOTYPES TO SALINITY AT EARLY GROWTH STAGES    • KINETICS AND ISOTH...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27729

• INFLUENCING FACTORS OF THE ACCEPTABLE AMOUNT OF COMPENSATION OF FARMERS FOR CONTROLLING FERTILIZER-INDUCED WATER POLLUTION    • DETERMINATION OF THE RARE EARTH METALS IN THE RED MUD FOR POSSIBLE UTILIZATION    • Fe(II) AND Mn(II) REMOVAL FROM CONTAMINATED GROUNDWATER BY ADSORPTION: A COMPARISON OF ACTIVATED CARBON AND PINE BARK    • RESPONSE OF UPLAND COTTON GENOTYPES TO SALINITY AT EARLY GROWTH STAGES    • KINETICS AND ISOTH...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27730

The ecological risk related to the wastes disposal is that attached to functioning, closure and the post-closure phases of an ecological landfill lyfe cycle. The prediction of ecological risk in each of those three phases - i.e. the manifestation and evolution of possible negative consequences of different severities for different environmental targets - is an endeavor that organizations that possess and operate those ecological landfills should consider in order to ensure the maximum protection...
Autori: Lidia Kim
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27748

The bioremediation represents an ongoing challenge, especially in the case of organochlorinated compounds, due to the difficulties in their degradation that causes persistence in the environment. Herein we report a study on the ability of a mixture of microorganisms (MOM) to interact with organochlorinated compounds belonging to different chemical classes, i.e. DDT, PCB, tetrachlorobenzene, and lindane. Experiments in vitro showed the disappearance, partially reversible of these compounds in mix...
Autori: Carla Boga
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27784

In the framework of the European Commission Blue Growth Strategy, a joint process among European countries has been put in place since 2014 to promote and implement research and innovation actions to increase the number of jobs in the marine and maritime sectors, commonly named ‘blue’, and pursue a sustainable growth in the Mediterranean area. The process has then been extended to the non-European (non-EU) Mediterranean countries. The natural and cultural uniqueness of the Mediterran...
Autori: Margherita Cappelletto
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27786

Recently, more and more companies are implementing good environmental practices. Environmental certifications, besides being valuable management tools for companies, given the opportunity to strengthen their role on the market. An example of such virtuous behavior is the case of Valcucine, an enterprise of the Livenza furniture district in Northern Italy. Valcucine focuses its care in the production of furniture, in particular of kitchen units, characterized by sustainable production, eco-compat...
Autori: Veronica Novelli
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27797

According to recent estimations, the total yearly amount of end-of-life tyres (ELTs) arising in Europe exceeds 3 million tons; more than 95% are managed through mechanical and thermal treatments because ELTs represent a useful resource both of materials and energy. For this purpose, the goal of the present work is the assessment of the environmental impacts of a novel pyrolysis process and the comparison with alternative ELTs valorisation or disposal scenarios. Life Cycle Analysis (LCA) methodol...
Autori: Esmeralda Neri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27798

Algal bloom can represent a serious consequence of the eutrophication of surface water. Some of these algae, called cyanobacteria, are of particular interest for their effect on human health due to their capacity to produce cyanotoxins. In many countries, in fact, there are important problems of poisoning attributed to toxic cyanobacteria and contamination of water sources (specially lakes) resulting in increased cyanobacterial growth. Cyanobacteria can become particularly harmful for humans whe...
Autori: Sabrina Sorlini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27800

The study performs an approach to the "environment - life quality - biotechnological molecular gastronomy" direction, an axis with consistent theoretic and practical potential in offering attractive and pleasant culinary products for the consumers, with the same effect on health as supplementary under pharmaceutics format. The paper proposes a change of paradigm, in order to develop certain excellence gastronomic preparations, based on incorporating functional and/or nutraceutic foo...
Autori: Romulus Gruia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27855

According to “polluter pays” principle, there is huge burden on the industries to remediate contaminated sites. Mergers and acquisitions of industrial sites is a preferred mode of growth for corporations. The management of the acquiring company should be mindful of potential environmental risks which they may inherit as part of the acquisition and take appropriate risk management actions. If not, they may face financial, reputation and other liabilities due to the “polluter ...
Autori: Shweta Gaur
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27854

Indigenous Pseudomonas veronii 2E, Klebsiella oxytoca P2 and Klebsiella ornithinolityca 1P were tested as catalysts for the transformation of Cr(VI) to Cr(III) for Cr(VI)-containing wastewater biotreatments. The Cr(VI) biotransformation was assayed during bacterial growth and by using pre-grown quiescent cells. Proof of the unsuitability of a biotreatment based on Cr(VI)-reduction during bacterial growth was found: the reduction rate and the maximum Cr(VI) concentration able to be reduced were t...
Autori: Mauricio Javier Alessandrello
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27853

Tunisian fish-processing industries generates large amounts of by-products. Their disposal is an increasing environmental and health problem. For an economic utilization, these by-products may be used in producing higher value-added products such as protein hydrolyzates. In this study, protein hydrolyzates with different degrees of hydrolysis (12%, 20% and 26%) were prepared from heads and viscera of Sardinella aurita using crude protease of Bacillus licheniformis NH1. The obtained hydrolyzates ...
Autori: Nabil Souissi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27852

The goal of the present work is to evaluate the efficiency of bioventing on low permeability soils stimulated with hydraulic fractures and polluted by a mixture of semi-volatile and non-volatile hydrocarbons. A synthetic non-aqueous phase liquid (NAPL) composed of 5 hydrocarbons is prepared: 1,2,4-trimethylbenzene (TMB), methylcyclohexane (MCE), n-dodecane (n-C12), n-decane (n-C10), n-eicosane (n-C20). The capacity of indigenous bacteria to degrade high NAPL concentrations is evaluated with biov...
Autori: Dimitra N. Tzovolou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27849

In this study, nine microbial strains with oil-degrading function were isolated from oil-contaminated soil near four oil wells in the 0.6 km2 area of the Jinnan Oil Field, Huaian, Jiangsu, China (32°57′ N, 119°02′ E). Based on morphological observations, physiological and biochemical responses, and molecular identification, we confirmed that the nine strains belong to five genera: Pseudomonas, Raoultella, Lysinibacillus, Escherichia, and Klebsiella. The degradation capacity o...
Autori: Yujia Liu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27848

The aim of this study is to investigate a variety behaviors of two kinds of media (multiple-layer structures and multiple-layer structures combined with surface treatment, such as finer fibers) with ages using a scanning electron microscope (SEM) and to determine the effect of fabric microstructures on cake formation and pulse cleaning. The results show that fine particles are readily deposited on the surface and inside depth filter medium. The fine fibers with diameters (~0.08 microns, this val...
Autori: Yan Cuiping
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27842

There has been an increasingly awareness over the environmental impact of human activities, along with the exponential industrial growth, over the last decades. One of the negative important issues is the air pollution and its impact over the human health in recent years. Therefore, there have been initiated several laws and projects in order to monitor, analyze and forecast the evolution of the most important air pollutants. In this paper, it have been designed a multi agent system based mod...
Autori: Elia Georgiana Dragomir
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27888

In order to reduce Cr(VI) and Cr(III) simultaneously, a double microbial fuel cell (MFC) system was employed to treat Crcontaining wastewater. Cr(VI)-MFC used Cr(VI) as a catholyte to supply the generated power to Cr(III)-MFC, while the latter MFC functioned as an external load resistor of the former one. Buffer characteristics of the catholyte greatly affected the reduction of chromium ions. At an initial pH of 2.0, Cr(VI) removal increased from 49.9% to 99.9% when KH2PO4 was added. Keeping ...
Autori: Fang Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27896

The utilization of inorganic carbon by the red macroalgae, Gracilaria edulis (G. edulis) was investigated in this study. G. edulis were grown in brackish water aerated with varying concentration of carbon dioxide - 350 ppm (actual atmospheric carbon dioxide, CO2), 700 ppm and 1400 ppm CO2 gas. Higher growth rate was observed in culture medium aerated with 1400 ppm CO2 and the lowest growth rate was observed at actual atmospheric carbon concentration. Besides that, significant pH drift was obs...
Autori: Lavania-Baloo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27900

The influence of initial metal ion concentration and temperature on the adsorption of Zn(II) from aqueous solution onto amino ethyl cellulose (AEC) functionalized with Orange 16 reactive dye, was examined. Batch experiments were performed at pH of 4.0 and adsorbent dose of 8.0 g/L previously established as optimum, ranging the initial Zn(II) concentration between 22.74-181.92 mg/L and temperature between 2 and 60 C. Three isotherm models (Langmuir, Freundlich and Dubinin – Radus...
Autori: Gabriela Nacu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27904

Drinking water treatment aims to avoid or minimize some risks to human health and to provide adequate water quality by removing physical, chemical and biological contaminants. However, treatment processes require increasing efforts in terms of technology, chemicals and energy inputs, which generate increased secondary environmental impacts and added water production costs. The objective of this study is to evaluate the drinking water treatment plant (DWTP) in Iasi City (Romania) by life cycle...
Autori: George Barjoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27922

This paper applied an artificial intelligence methodology for streamflow prediction in a flash flood in Pinang catchment based on TOPMODEL input and output data sets. TOPMODEL is a semi-distributed rainfall runoff model widely used in numerous water resource applications. However, literature has indicated relative weakness in TOPMODEL performances in streamflow prediction. Thus, radial basis function neural network (RBF-NN) has been employed to improve the accuracy of streamflow prediction an...
Autori: Ali H. Ahmed Suliman
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27924

We assessed the variability of the main physico-chemical parameters of drinking water: oxidability, turbidity, conductivity, water hardness, free chlorine concentration, chlorides and nitrates across the four seasons (Spring, Summer, Autumn of 2013 and Winter of 2014). We collected data from several points in the supply network of Satu Mare city, NW of Romania, where the source of drinking water is groundwater. The results revealed significant higher average values in spring for some of the ...
Autori: Thomas Dippong
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27928

Proper functioning of the main ventilation station depends on the mining network’s degree of ventilation. Also, knowledge of changes in instantaneous aerodynamic parameters offers the possibility of taking operational measures necessary to maintain optimal health and safety in the underground. The objective of the present paper is to identify a new method of monitoring the aerodynamic parameters at the main ventilation station. ...
Autori: Emeric Chiuzan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27949

The related European directives in force stipulate that product testing shall be performed in conditions that reproduce as accurately as possible the real ones that may be encountered during their operation. These are products whose intended use are specified in the safety data sheet or within the instructions for use, and whose limits of the micro-climatic parameters that can be encountered (temperature, humidity, wind - for the outside ones, temperature, humidity, generation of restricted t...
Autori: Ilie Ciprian Jitea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27956

The manner in which individuals deal with stressful situations depends on several variables. Personality characteristics, event circumstances, preparedness of individual, personal appraisal of events, pre-existing organizational and personal stressors are all key factors. Psychological resistance to stress can be the result of spontaneous evolution, or can be developed through special training, through programs that increase the threshold beyond which functional alterations may occur, resulti...
Autori: Izabella Kovacs
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27958

The influence of the piston effect in subway tunnels depends on a train speed, the geometry of a tunnel and a train, the types of air flow caused by mechanical ventilation and other variable characteristics. Tables and graphs of changes in air flows generated by the effect of the piston are presented depending on the speed of a train and the degree of fill rate of a tunnel. It is noted that the piston effect is characterized by two phases. At the first stage, the piston effect and the process...
Autori: Omar Lanchava
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27959

The paper presents a methodology for determining the conditions in which the liquid phase occurs in the transported natural gas. This methodology allows fast and accurate determination of the phase in which water can be found in natural gas transmission pipelines and also the possibility to highlight the points in the transmission system in which water is in liquid state. A complex function which can describe the phase behavior of water from natural gas has been defined by processing the phase e...
Autori: Sorin Neacşu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27970

A series of water quality and ecological problems are caused by algal blooms, and natural allelochemicals are considered as the source of algaecides due to their friendly advantages to environment. It has been reported that abundance of secondary metabolites are found in grape plants, and the extracts from the plant exhibit antioxidant, antibacterial and antifungal capacities. In order to reveal the anti-algal activity of grape pruning wastes and promote their usage, we analyzed the composition ...
Autori: Zhaojiang Zuo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27971

In the context of large interest of World Health Organization to progress in prevention of tuberculosis (TB) by avoidance of transferring pathogens from the Mycobacterium tuberculosis (Mtb) complex, and ensuring diagnosis and treatment of this disease at global, regional and country levels, it was found that most people who develop TB disease can be cured if well-timed diagnosis and correct treatment are performed. This paper presents and discusses a case study, when a patient was rapidly diagn...
Autori: Stefania Alice Cislariu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27982

Chlortetracycline (CTC) and copper (Cu) are simultaneously used as feed additives to improve the growth performance and to prevent infection in pig farming. After ingestion by animals, most of these compounds are excreted and coexist in swine manure. They might have an influence on anaerobic digestion when the swine manure is used as substrate in a biogas plant. The purpose of this study was to investigate the effects of both CTC and Cu on batch swine manure anaerobic digestion in order to bette...
Autori: Rui Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27983

This study presents the influence of the storage recipients’ material and of the use and the type of stirring on the drinking water quality. The kinetics of drinkable water quality alteration under stationary conditions and under magnetic and sonical stirring have been monitored for a two weeks period. The microbiological parameters (total number of germs developed at 37°C and 22°C, lactose-positive and lactose-negative bacteria, coliform bacteria and Echerichia coli), as well a...
Autori: Laura Damian
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27999

With the rapid development of electric vehicles (EV), more and more EV batteries will intensively face the retirement. If they are treated improperly, EV batteries might pose a serious threat to human health and environment. Therefore, recycling spent EV battery is full of significance. However, the recycling system and specific policies have not be well established in China. This paper aims to evaluate several recycling subsidy policies being considered and tested in China for their influenc...
Autori: Xin Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28002

Our research aims to establish the influence of Osmocote®Pro fertilizer on ornamental characteristics, photosynthetic pigments content, superoxide dismutase and peroxidase activities for Lillium regale species. The tests were organized in four variants, each with three replicates, each replicate consisting of 10 bulbs. The growth of plants in the four experimental variants was achieved without fertilization in case of the control variant (M) and under fertilization conditions with Osmocot...
Autori: Maria Brînză
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28005

The extent of the application of life cycle assessment (LCA) is not sufficient for the alternatives assessments performed in the industry in general and for the ecolabelling of the products/services. Given that the LCA is a widely-accepted methodology, the driving question behind this study was: “Is it possible to ecolabel each existing product/service in a case specific manner by using LCA results, so that the consumers would be able to know the extensive environmental impact of their ...
Autori: Semih Oguzcan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28016

The polyhydroxybutyrate (PHB) production by photoautotrophic cultures is a potential eco-sustainable process to produce bioplastics. The biosynthesis of PHB by cyanobacteria meets a twofold target: the use of CO2 as feedstock alternative to the fossil resource used in the conventional processes; the contribution to the reduction of the CO2 concentration in the atmosphere. This contribution reports results of a study regarding the optimal growth conditions for cyanobacteria to produce PHB unde...
Autori: Roberta Carpine
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28021

As one of the largest coastal wetlands in northern China, the ecological function of Caofeidian wetland has gradually degraded due to the influence of climate and surrounding environment. In order to regulate and repair the water area of the wetland, it is necessary to study and analyse the historical changes and influencing factors of the water area of Caofeidian wetland This paper extracts the water area of Caofeidian Wetland in 1984~2013 from the images collected by Landsat satellites usin...
Autori: Shaoxiong Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28022

Based on the dynamic panel data from 29 administrative regions in China over the period of 2003-2013, we applied GMM system method to the analysis of the relationship between financial development, economic growth and CO2 emissions. Empirical analysis indicates that economic growth is usually accompanied by higher CO2 emissions, while the increasing level of final development is associated with a reduction in CO2 emissions. Further analysis shows that the relationship between financial develo...
Autori: Shushu Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28023

The limited availability of fossil fuels, as well as the already proven effects of global warming, highlight the need for alternative, environmentally-friendly energy generation. Consideration of primary energy inputs from new and renewable energy resources and technologies represent a major scientific challenge, and a major innovation if realized. This will open up new opportunities for benefit and realized value, in the form of lower costs of energy supply, through the utilization of indige...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28027

The present study has established a methodology to determine the most environmentally sustainable area for the expansion of a city center using Geographic Information System (GIS) technology. This technology permits the graphical information associated with a municipality to be manipulated, integrated, analyzed and represented in a simple way that is cost effective during the early decision making steps, which analyze the various options regarding the urbanistic planning prior to taking final...
Autori: Marco Criado
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28028

The environmental and economic impacts posed by waste electrical and electronic equipment (WEEE) make an effective collection and recycling scheme necessary for developing countries. Currently, developing countries in the Asia-Pacific regions are highly variable in terms of their present state of WEEE management, due to different economic conditions and levels of management. In this paper, we surveyed existing WEEE collection and recycling system in three Asia-Pacific developing countries &nd...
Autori: Yuan Chen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28034

After the recent global financial and economic crises, unemployment, especially among young people have become a particularly serious problem. Fostering young entrepreneurship represent not only a tool to combat young unemployment and social exclusion but also a way to encourage innovation and a country’s economic growth. Education and training can contribute in building an entrepreneurial society and may shape individuals attitudes versus risk-taking. Risk taken ability is an important...
Autori: Ana Iolanda Vodă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28038

Due to emissions from power station using fossil fuels, the decrease of existing pollution as well as of operational costs should be taken into consideration, when resolving environmental economic dispatch problems. In this research, we will evidence that nonlinear constraints of generating units, forbidden regions, and ramp-rate of generating units will reduce operational costs and environmental pollution, to achieve environmental economic dispatch effectiveness, by employing an improved mul...
Autori: Daqing Wu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28045

Among the usual geodetic methods of vertical deformations measuring of structures and natural objects, geometrical levelling is one of the most accurate, but also requires compliance to specific conditions of slope and terrain accessibility. Where geometrical levelling is difficult or impossible to apply, the trigonometric levelling can be a viable practical solution, if there are followed a series of procedures to improve the accuracy of the final results. For the case of classical geodetic me...
Autori: Constantin Chirilă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28049

The main objective of the research was to study the efficiency of the glyphosate amine pesticide mineralization in wastewaters (real and model type of wastewaters respectively) using ozonation treatment as an advanced oxidation processes (AOP). The wastewater samples (model wastewater) were obtained by mixing a given volume of the stock solution prepared from glyphosate isopropyl-amine in different volumetric ratios with distillated water and with real wastewater obtained from a domestic wastewa...
Autori: József Németh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28050

In order to select a better plant to extract cadmium in heavy metal contaminated soil, a hydroponic germination experiment was designed to evaluate the effects of cadmium on seed germination characteristics of Grain amaranth (Amaranthus hypochondriacus L.), Indian mustard (Brassica juncea) and Ryegrass (Lolium perenne L.). The results showed that fresh weight, dry weight and germination index of Ryegrass were promoted at the low cadmium concentrations (≤ 25 mg/L), while that of 3 plants was i...
Autori: Zhang Jun
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28051

This paper focuses on the effect of some water quality parameters of river water which helps in the calculation of water quality index (WQI) that culminates in the development of a regression model for prediction of WQI of the river system in India. The index was calculated by arithmetic index method using twelve various experimentally estimated water quality parameters such as potential hydrogen, chlorides, dissolved oxygen saturation, nitrates, sulphates, phosphates, total dissolved solids, bi...
Autori: Divya Airattil Haridas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28065

To ensure that green growth are achieved and socially optimal, we develops an endogenous growth model featuring a directed technological innovation, environmental taxation and economic activity. Our model investigates the inner dynamic interactions of green growth. Then, a numerical analysis is presented to trace how the green growth will be achieved by the four parameters: the size of tax distortions, the rate of capital tax, the elasticity of pollution conversion and the cost of carbon abateme...
Autori: Yuzhe Zhao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28066

In the European Union, 88 million tons of food is wasted annually, 30% of which comes from the production and processing sectors. Among the different food waste, vegetable ones represent a remarkable share and their management is complicated by the usually high-water content and the difficult storage. In this context, the earthworms are an interesting solution because transform vegetable waste into valuable products: the vermicompost, that can be sold as organic fertilizer, and the earthworms th...
Autori: Cecilia Conti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28073

The embedment of circular economy principles in cities is an opportunity to reduce the urban waste production and resource consumption towards closed-loop systems. In particular, the adoption of circular economy strategies as regeneration, optimization, sharing and loops can overcome waste and inefficiencies of linear economy. This paper presents some circular economy practices bringing an integration of circular strategies at urban scale. This work was funded by the Research into Electrical Sys...
Autori: Francesca Cappellaro
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28076

Wastewater for irrigating tree crops may act both as water and mineral nutrients source, offering potential agronomical and environmental advantages. This work investigated the effect of an entire season supply of secondary treated wastewater (STW) on the nutritional and physiological responses of 3 year old apple trees. Trees (Gala /M9) were individually grown on 40-L pots filled with a sandy-loamy soil and drip irrigated with: 1)Tap water (TW) (without any mineral fertilizer inputs); 2) Tap wa...
Autori: Giulio Demetrio Perulli
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28079

Digestate derived from the anaerobic digestion of biowaste is a nutrient-rich substance whose direct use on land is not permitted by the Italian Legislation. The possibility of recovering its nutrients can be given by the processes of stabilisation and sanitation required by the Italian Legislation. Among these processes, composting and calcium hydrolysis with neutralization (CHN) permit to obtain useful soil improvers like compost and defecation gypsum (DG). In this paper a gate-to-gate Life Cy...
Autori: Sofia Spagnolo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28080

Water is a vital resource for both human needs and the functioning of our ecosystem. Fresh water availability and water use have been a growing problem for centuries. This paper gives a brief overview on the current knowledge of water stress and describes possible solutions. In addition to a differentiated consideration of the various types of water stress, the special importance of water purification by membrane technology and the associated processes is discussed in detail. The economic provis...
Autori: Jan Koppe
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28086

This manuscript presents the bicriteria optimization of a polygeneration system to be installed in a tertiary sector building, considering economic and environmental objective functions. Electricity, hot water, steam, and cooling demands were considered. The bicriteria problem considered the annual costs and the annual carbon footprint. Updated environmental information was obtained through the application of the Life Cycle Assessment methodology and implemented within a Mixed Integer Linear Pr...
Autori: Bruno Campos Teixeira de Carvalho
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28103

Based on the interpretation of LUCC data, through the correction of basic equivalent value and value equivalent coefficient, this study sets up the evaluation system based on value transfer method, and realizes the dynamic evaluation of wetland ecosystem nservices value in Jiangbei New Area, i.e., the value of wetland ecosystem services in Jiangbei New Area was RMB 6,060.77 million, RMB 9,244.62 million and RMB 7709.68 million respectively in 2002, 2009 and 2017, which show obvious fluctuation ...
Autori: Shu Tang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28109

Municipal wastewater treatment is a global issue and an expensive process. Treatment of the wastewater using algal growth is a cost-effective approach, because of easy propagation of algae in wastewaters through utilization of most of the nutrients and in turn reduces the pollution load. As a preliminary research work, laboratory scale studies were done using native algal species collected from particular sources. They were grown in different pond waters to observe the biomass development in co...
Autori: Iqbal Ansari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28135

Different anthropogenic influences and irresponsible actions pollute all the components of the environment and groundwater is no exception. Nitrates, which are one of the most common groundwater contaminants, come from different sources and they are not always easily detectable. The paper presents a study of a groundwater quality at the VaraĹždin wellfield in the north part of Croatia. The nitrate concentration at this location has been above the maximum allowed concentration for several decades...
Autori: Marko Ĺ rajbek
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28140

Greenhouse gas (GHG) emissions represents a global challenge and a quantitative approach is a support for decision makers. The aim of this paper is to estimate future values of GHG emissions in Europe, considering different periods of reference and through two common mathematical parameters (average annual growth rate (AAGR) and compound annual growth rate (CAGR)). Results analysis show that a reduction of GHG emissions can be reached. However, some Member States (MSs) as Ireland and Netherland...
Autori: Federica Cucchiella
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28144

This study aims to measure the environmental concern in Romania, to investigate its state of fact at regional and county levels and to provide a better understanding of its determinants. Using data from World Values Survey (2010-2014), there were firstly analyzed the perceptions (care for environment, perspective on environmental pollution, alternative between protecting environment vs. economic growth), then active participation (membership in an environmental organization, financing ecological...
Autori: Simona-Roxana Ulman
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28147

The industrial water quality of a thermal power plant is of high importance, and a process water treatment station being always required. Whatever the adopted treatment system is, it is accompanied by the production of different amounts of sediment and sludge, which must be disposed and valorized. This paper presents in detail, the physical-chemical treatment system applied for the industrial water production in a Romanian thermal power plant (Veolia Energy Iasi Co.), referring to its installati...
Autori: Dorina Stănciulescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28154

The contamination of aquatic and terrestrial environments by pesticides is highlighted by their possible toxic properties and poor biodegradability on the environment. The development of low cost by products from agricultural sectors as a suitable solution for contaminated areas remediation is of great environmental interest. Straw wastes can be considered as a promising alternative to remove different chemical compound that are environmentally toxic. In this study, some materials derived from ...
Autori: Irina Gabriela Cara
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28161

Growth rate and biomass yield in the case of Arthrospira platensis depend on nutrient availability, temperature and light, which can determine changes in the metabolism and therefore in the biomass composition. The aim of this study is to evaluate the behavior of A. platensis during the growing time in several liquid culture media and their influence on the yield of biomass production. The following culture media have been investigated in this sense: ARS, Zarrouk (Z), modified Zarrouk (MZ), eco...
Autori: Mariana Diaconu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28163

The goal of this paper is to contribute to environmental improvement. This goal has been achieved by the development of an algorithm that allows the optimization of fuel consumption and transport of combustion products. The paper considers the outlier – robust recursive algorithm. This algorithm is used for identification of multivariable ARMAX (Autoregressive Moving Average with Exogenous Variables) models. In this paper, we introduce pseudo-Huber loss function which is a continuous nonli...
Autori: Vojislav Filipovic
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28167

Salinity of irrigation water is one of the main environmental constraints limiting the geographical distribution of several species. In order to understand and to cope with critical environmental constraint, a pot experiment was undertaken to investigate the potential effect of irrigation with various natural saline waters gathered from arid and semiarid regions; on rooting of stem cuttings, growth and on the physiological responses of Mascarene grass (Zoysia tenuifolia Willd.). The obtained res...
Autori: Sihem Soufi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28169

Due to the population growth and urbanization’s trend, peri-urban areas that surround major cities are haphazardly increasing without proper infrastructure in the developing world. Even though the literature review points out that there are several suitable wastewater treatment system (WWTS) alternatives which could mitigate that issue, one of the main problems lies on the process of making decisions. Thus, this study applies the Structured Decision Making (SDM) instrument through the use ...
Autori: Danilo Cesar Strapasson
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28182

This study aims to evaluate the properties of different wastes obtained from four red ceramic brick industries in the northern region of Santa Catarina, Brazil. The characterization of the clay brick waste (CBW) was performed using the XRD techniques, XRF, FTIR, DTA and SEM. Techniques to determine the pozzolanic activity, particle size, B.E.T. surface area and specific mass were used. The consumption of calcium hydroxide (CH) in the cementitious pastes with the CBWs was also measured. An app...
Autori: Adilson Schackow
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28184

Since the era of the Industrial Revolution, energy consumption has considerably increased. As a consequence, a significant rise in greenhouse gas emissions has become a serious threat to environmental sustainability through climatic changes, global warming, natural disasters and pollution. In this context, increasing energy efficiency as well as the use of renewable energy can serve as important instruments for reduction of greenhouse gas emissions. The related literature has thus far generally ...
Autori: Yilmaz Bayar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28185

Biological ammonium removal from wastewater requires coupling of nitrification and denitrification processes in respective aerobic and anaerobic conditions. This difference in environmental requirements pose a big challenge in the design of systems intended to effect both nitrification and denitrification processes. Alcaligenes faecalis strain No. 4, however, has both heterotrophic nitrification and aerobic denitrification abilities in aerobic conditions, eliminating the need to provide anaerobi...
Autori: Hung-Soo Joo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28186

The mineral contents of leaf, leaf petiole, fruit and fruit peduncle during the early and late stages of the production cycle may explain differences in response to fertilization in several strawberry genotypes. The aim of this study was to evaluate the nutritional status of two strawberry cultivars grown in soil. The nutritional status was determined as the amounts of nutrients taken up by the strawberry plants and the nutrient distribution within various parts of the plants during the produ...
Autori: Antonio DomĂ­nguez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28187

Inorganic ceramic materials is receiving more attention in recent times due to their unique characteristics which include different pore structures, hydrophilic surfaces, high chemical, thermal and mechanical stabilities that offer avenues for application in water treatment. In the present work, cost-effective clay ceramic water filters of different designs were developed from clay (50, 60, and 70) %, sawdust (15, 20, 25, and 35) %, grog (5, 10 and 15)% ratios plus 5% bone char by volume and ...
Autori: Enyew Amare Zereffa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28196

Copper and Zinc co-doped titania nano photocatalyst (Cu-Zn-TiO2 NPC) was fabricated and characterized using room temperature X-ray diffraction (XRD), field emission electron microscopy (FESEM) with high-resolution transmission electron microscopy (HRTEM) and energy dispersion X-ray (EDX). X-ray diffraction studies of the Cu2+-Zn2+/TiO2 show the presence of anatase phase TiO2 and in the sample prepared from 0.05, 0.10, 0.15 and 0.20 mmol have also shown the presence of anatase phase only. The ph...
Autori: Tentu Nageswara Rao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28198

A water distribution network’s (WDN’s) flow capacity decreases over time mainly because of the unplanned demand growth at its consumption points, increased water loss, and increased internal roughness caused by aging of pipes. In this context, this work presents a new performance indicator, the Carrying Capacity Indicator (ICC). It will enable utility managers to evaluate WDNs’ hydraulic and energy efficiency. The ICC was applied in a real case study: a sector of the Joã...
Autori: Heber Pimentel Gomes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28200

Torrential watershed management actions should be integrated and their results designed to last for a long time. In Romania and in other countries, these actions cover the entire area of the watershed (slopes, banks, and riverbeds). They consist of complex sets of structural and non-structural measures and works designed to control runoffs and erosion, protect social-economic objectives and improve degraded lands. The most vulnerable structures are the hydrotechnical structures, which are place...
Autori: Alin-Lucian Mihalache
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28211

Silk sericin is a water-soluble macromolecular protein obtained from the raw cocoons of silkworm, Bombyx mori. It comprises of about 25% of the total cocoon shell weight and is categorized as a waste by-product in textile and silk industries after the extraction of silk fibers. This study emphasizes on the extraction of sericin from B. mori by a conventional salt alkaline method and characterized their physico-chemical properties, thermal stability, anti-bacterial and anti-oxidant activities. T...
Autori: Inderchand Manjubala
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28213

Diesel oil (DO) as a mixture of alkanes and aromatic compounds causes damage to the ecosystem in terrestrial and aquatic habitats. One of the best methods of treating contaminated areas is to use microorganisms in a bioremediation method that can degrade pollutants. The aim of this study was to isolate indigenous bacteria with high biodegradation potential of DO from oil-contaminated wastewater. Bacterial isolation was performed using a mineral medium containing contain 1% DO as the sole source ...
Autori: Sharareh Dashteepour
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28224

This paper proposes a Fuzzy Logic Controller/ Dijkstra’s Algorithm based software that calculates the most reliable communication link between a WaspmotePlug&Sense Sensor Node and a Meshlium Router in a Wireless Sensor Network (WSN). The algorithm implements the effect of three parameters important for the functioning of the WSN: Waspmote involvement, the received signal strength indicator (RSSI) and the distance of the Waspmotes, for achieving optimal work capability of the system. Du...
Autori: Nikola Manev
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28225

Release of dyes without performing adequate treatment into the water can lead to environmental risk and serious health problems. The development of effective and economic adsorbent materials for the removal of dyes from industrial wastewaters has gained great consideration in recent years. In the present study, a novel bio-based nanocomposite has been developed for ultrasoundassisted adsorption of malachite green (MG) from aqueous solutions. The synthesized adsorbent consisting of both hydropho...
Autori: Mohsen Nekoeinia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28232

Based on the panel data of the Yangtze River Economic Belt in 1998-2016, this paper carries out a spatial econometrics analysis on the convergence of low-carbon economic growth efficiency (LCEGE) in the Belt. The main results are as follows: there are huge provincial differences in the LCEGE across the Belt; the spatial autocorrelation (Global Moran’s I) test shows a significant spatial correlation of the LCEGE, with an obvious regional spatial clustering effect; considering the spatial ef...
Autori: Hualei Ju
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28235